diff --git a/platformio.ini b/platformio.ini
index 267ce4b8..46925922 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -65,6 +65,7 @@ default_envs =
   esp32_pico_4MB_M
   esp32_4MB_PSRAM_S
   esp32S3_8MB_M
+  ;; esp32S3_8MB_PSRAM_M   ;; experiemental
   ;; esp32s2_tinyUF2_PSRAM_S  ;; experimental - only for adafruit -S2 boards with tinyUF2 bootloader !!!
   esp32s2_PSRAM_M          ;; experimental
   esp32c3dev_4MB_M         ;; experimental
@@ -304,7 +305,11 @@ platformV4 = espressif32@5.2.0
 platformV4_packages =
   toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 ; required for platform version < 5.3.0, remove this line when upgrading to platform >=5.3.0
 
-;;; experimental: V4 platform with latest arduino-esp32 2.0.9 + ESP-IDF 4.4.4 (may or may not work)
+;;; updated V4 platform (5.3.0) - experimental
+;;platformV4_up = espressif32@ ~5.3.0
+;;platformV4_packages_up =
+
+;;; experimental: latest V4 platform with latest arduino-esp32 2.0.9 + ESP-IDF 4.4.4 (may or may not work)
 platformV4_xp = espressif32@ ~6.3.0
 platformV4_packages_xp = platformio/framework-arduinoespressif32 @ ~3.20009.0    ;; arduino-esp32 v2.0.9+
 
@@ -1074,15 +1079,15 @@ extends = esp32_4MB_S_base
 build_flags = ${esp32_4MB_S_base.build_flags}
   -D WLED_RELEASE_NAME=esp32_4MB_S
   -D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
-; RAM:   [==        ]  24.1% (used 78988 bytes from 327680 bytes)
-; Flash: [========= ]  85.7% (used 1348593 bytes from 1572864 bytes) WLEDMM: Earlier 83.7
+; RAM:   [===       ]  25.0% (used 81988 bytes from 327680 bytes)
+; Flash: [========= ]  87.4% (used 1374677 bytes from 1572864 bytes) WLEDMM: Earlier 85.7
 
 [env:esp32_4MB_M]
 extends = esp32_4MB_M_base
 build_flags = ${esp32_4MB_M_base.build_flags}
   -D WLED_RELEASE_NAME=esp32_4MB_M
-; RAM:   [==        ]  24.4% (used 79956 bytes from 327680 bytes)
-; Flash: [========= ]  91.1% (used 1432245 bytes from 1572864 bytes) WLEDMM: earlier 88.7
+; RAM:   [===       ]  25.2% (used 82628 bytes from 327680 bytes)
+; Flash: [========= ]  94.3% (used 1483793 bytes from 1572864 bytes) WLEDMM: earlier 91.1
 
 [env:esp32_4MB_XL]
 extends = esp32_4MB_XL_base
@@ -1483,9 +1488,9 @@ build_flags = ${common.build_flags} ${esp32s3.build_flags} -Wno-misleading-inden
   ${common_mm.build_flags_S} ${common_mm.build_flags_M}
   ; -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON -D WLED_USE_PSRAM ;; un-comment in case your board supports PSRAM
   -D WLED_RELEASE_NAME=esp32S3_8MB_M 
-  -D ARDUINO_USB_MODE=1 -D ARDUINO_USB_CDC_ON_BOOT=0 -D ARDUINO_USB_MSC_ON_BOOT=0 -D ARDUINO_USB_DFU_ON_BOOT=0     ;; for Serial-to-USB chip
-  ;; -D ARDUINO_USB_MODE=1 -D ARDUINO_USB_CDC_ON_BOOT=1 -D ARDUINO_USB_MSC_ON_BOOT=0 -D ARDUINO_USB_DFU_ON_BOOT=0  ;; for Hardware-CDC USB mode
-  ;; -D WLED_DISABLE_ADALIGHT     ;; disables serial protocols when using CDC USB (Serial RX will receive junk commands when RX pin is unconnected, unless its pulled down by resistor)
+  -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=0 -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0   ;; for Serial-to-USB chip
+  ;;-DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=1 ;; for Hardware-CDC USB mode
+  ;;-D WLED_DISABLE_ADALIGHT     ;; disables serial protocols - recommended for Hardware-CDC USB (Serial RX will receive junk commands when RX pin is unconnected, unless its pulled down by resistor)
   -D WLED_WATCHDOG_TIMEOUT=0 -D CONFIG_ASYNC_TCP_USE_WDT=0
   ; -D U8X8_HAVE_2ND_HW_I2C ;; experimental - tells U8g2 lib that a second HW I2C unit exists
   -D WLED_DISABLE_LOXONE ; FLASH 1272 bytes
@@ -1493,21 +1498,17 @@ build_flags = ${common.build_flags} ${esp32s3.build_flags} -Wno-misleading-inden
   ; -D WLED_DISABLE_MQTT ;   RAM 216 bytes; FLASH 16496 bytes
   ; -D WLED_DISABLE_HUESYNC ;RAM 122 bytes; FLASH 6308 bytes
   ; -D WLED_DISABLE_INFRARED ;RAM 136 bytes; FLASH 24492 bytes
+  ;;-D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
   -D LEDPIN=4
-  -D STATUSLED=39
+  ;-D STATUSLED=39
   -D BTNPIN=48
   -D RLYPIN=21
   -D IRPIN=15
   -D HW_PIN_SDA=42 ;; ESP32-S3 default: SDA = 8
   -D HW_PIN_SCL=41 ;; ESP32-S3 default: SCL = 9
   -D AUDIOPIN=-1
-  -D SR_DMTYPE=1
-  -D I2S_SDPIN=16
-  -D I2S_CKPIN=17  
-  -D I2S_WSPIN=47
-  -D MCLK_PIN=40
-  -D ES7243_SDAPIN=8
-  -D ES7243_SCLPIN=18
+  -D SR_DMTYPE=1 -D I2S_SDPIN=16 -D I2S_CKPIN=17 -D I2S_WSPIN=47 -D MCLK_PIN=40
+  -D ES7243_SDAPIN=8 -D ES7243_SCLPIN=18
   ; -D WLED_DEBUG
   ; -D SR_DEBUG
   ; -D MIC_LOGGER
@@ -1515,8 +1516,49 @@ lib_deps = ${esp32s3.lib_deps} ${common_mm.lib_deps_S}  ${common_mm.lib_deps_V4_
 ;lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
 board_build.partitions = tools/WLED_ESP32_8MB.csv
 board_build.flash_mode = qio
-; RAM:   [==        ]  24.7% (used 80856 bytes from 327680 bytes)
-; Flash: [=======   ]  66.9% (used 1403489 bytes from 2097152 bytes)
+; RAM:   [===       ]  25.4% (used 83320 bytes from 327680 bytes)
+; Flash: [=======   ]  70.6% (used 1479573 bytes from 2097152 bytes)
+
+;; MM for ESP32-S3 PSRAM development board, with 8MB FLASH and >= 8MB PSRAM (memory_type: qio_opi)
+[env:esp32S3_8MB_PSRAM_M]
+extends = esp32_4MB_V4_M_base
+
+board = esp32-s3-devkitc-1 ;; generic S3 dev board; the next line adds PSRAM support
+board_build.arduino.memory_type = qio_opi     ;; use with PSRAM: 8MB or 16MB
+;; board_build.arduino.memory_type = qio_qspi ;; use with PSRAM: 2MB or  4MB
+board_build.flash_mode = qio ;; use "dio" if your board gets unstable with "qio"; also change then previous lines accordingly (memory_type)
+
+build_unflags = ${env:esp32S3_8MB_M.build_unflags}   ;; use the same as "normal" S3 buildenv
+build_flags = ${common.build_flags} ${esp32s3.build_flags} -Wno-misleading-indentation -Wno-format-truncation
+  ${common_mm.build_flags_S} ${common_mm.build_flags_M}
+  -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON ;; -D WLED_USE_PSRAM ;; your board supports PSRAM
+  -D WLED_RELEASE_NAME=esp32S3_8MB_PSRAM_M
+  -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=0 -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0     ;; for Serial-to-USB chip
+  ;;-DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=1   ;; for Hardware-CDC USB mode
+  ;;-D WLED_DISABLE_ADALIGHT     ;; disables serial protocols - recommended for Hardware-CDC USB (Serial RX will receive junk commands when RX pin is unconnected, unless its pulled down by resistor)
+  -D WLED_WATCHDOG_TIMEOUT=0 -D CONFIG_ASYNC_TCP_USE_WDT=0
+  ;;-D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
+  -D WLED_DISABLE_LOXONE ; FLASH 1272 bytes
+  -D WLED_DISABLE_ALEXA ;  RAM 116 bytes; FLASH 13524 bytes
+  ; -D WLED_DISABLE_MQTT ;   RAM 216 bytes; FLASH 16496 bytes
+  ; -D WLED_DISABLE_HUESYNC ;RAM 122 bytes; FLASH 6308 bytes
+  ; -D WLED_DISABLE_INFRARED ;RAM 136 bytes; FLASH 24492 bytes
+  -D LEDPIN=21
+  ;;-D DATA_PINS=21,48,3 -D PIXEL_COUNTS=30,1,144  ;; just an example: my board has a builtin neopixel on gpio48
+  ; -D STATUSLED=2
+  -D BTNPIN=0 -D RLYPIN=1 -D IRPIN=-1
+  -D HW_PIN_SDA=42 -D HW_PIN_SCL=41
+  -D AUDIOPIN=-1
+  -D SR_DMTYPE=1 -D I2S_SDPIN=14 -D I2S_CKPIN=45 -D I2S_WSPIN=47 -D MCLK_PIN=46
+  ;;-D ES7243_SDAPIN=8 -D ES7243_SCLPIN=18
+  ; -D WLED_DEBUG
+  ; -D SR_DEBUG
+  ; -D MIC_LOGGER
+lib_deps = ${esp32s3.lib_deps} ${common_mm.lib_deps_S}  ${common_mm.lib_deps_V4_M}
+;lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
+board_build.partitions = tools/WLED_ESP32_8MB.csv
+; RAM:   [====      ]  36.3% (used 118828 bytes from 327680 bytes)
+; Flash: [=======   ]  70.7% (used 1483465 bytes from 2097152 bytes)
 
 ;; MM for Adafruit QT Py ESP32-S2 -> 4MB flash, PSRAM, and tinyUF2 bootloader
 ;; to ewowi - i'll optimize this entry later, as a few things can be inherited for sure. To softhack: sure ;-)
@@ -1568,8 +1610,8 @@ lib_ignore =
   IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
   OneWire         ; not needed as we don't include USERMOD_DALLASTEMPERATURE
 monitor_filters = esp32_exception_decoder
-; RAM:   [===       ]  25.1% (used 82348 bytes from 327680 bytes)
-; Flash: [==========]  95.8% (used 1381742 bytes from 1441792 bytes)
+; RAM:   [===       ]  33.0% (used 108276 bytes from 327680 bytes)
+; Flash: [==========]  97.9% (used 1411114 bytes from 1441792 bytes)   !!! 98%
 
 ;; MM environment for generic ESP32-S2, with PSRAM, 4MB flash (300kB filesystem to have more program space)
 [env:esp32s2_PSRAM_M]
@@ -1594,8 +1636,9 @@ build_flags = ${common.build_flags} ${esp32s2.build_flags}
   -D WLED_RELEASE_NAME=esp32S2_4MB_M
   -DARDUINO_USB_CDC_ON_BOOT=0
   -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0
-  -D WLED_DISABLE_ADALIGHT     ;; disables serial protocols, as the board onl has CDC USB
+  -D WLED_DISABLE_ADALIGHT     ;; disables serial protocols, as the board only has CDC USB
   -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON -D WLED_USE_PSRAM
+  ; -D WLEDMM_WIFI_POWERON_HACK -DLOLIN_WIFI_FIX ;; use this _only_ if your device is not able to make a WiFI connection!
   -D WLED_DISABLE_INFRARED ;; save flash space
   -D WLED_DISABLE_ALEXA    ;; save flash space
   -D WLED_DISABLE_HUESYNC  ;; save flash space
@@ -1614,14 +1657,14 @@ lib_ignore =
   IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
   OneWire         ; not needed as we don't include USERMOD_DALLASTEMPERATURE
 monitor_filters = esp32_exception_decoder
-; RAM:   [==        ]  22.9% (used 75068 bytes from 327680 bytes)
-; Flash: [========  ]  78.3% (used 1487802 bytes from 1900544 bytes)
+; RAM:   [===       ]  30.9% (used 101228 bytes from 327680 bytes)
+; Flash: [========  ]  80.4% (used 1527278 bytes from 1900544 bytes)
 
 ;; MM environment for generic ESP32-C3 -> 4MB flash, no PSRAM
 [env:esp32c3dev_4MB_M]
 extends = esp32_4MB_V4_S_base
 ;board_build.flash_mode = dout
-platform = ${esp32.platformV4}                           ;; alternative platform, might help in case you experience bootloops due to corrupted flash filesystem
+platform = ${esp32.platformV4}
 platform_packages = ${esp32.platformV4_packages}
 board_build.flash_mode = qio
 board = esp32-c3-devkitm-1
@@ -1650,7 +1693,7 @@ build_flags = ${common.build_flags} ${esp32c3.build_flags}
   -D WLED_DISABLE_ADALIGHT     ;; to disable serial protocols for boards with CDC USB (Serial RX will receive junk commands, unless its pulled down by resistor)
   -DARDUINO_USB_CDC_ON_BOOT=0    ;; disable CDC USB
   -D SERVERNAME='"WLED-C3"'
-  ;-D WLEDMM_WIFI_POWERON_HACK ;; use this _only_ if your device is not able to make a WiFI connection!
+  -D WLEDMM_WIFI_POWERON_HACK -DLOLIN_WIFI_FIX ;; use this _only_ if your device is not able to make a WiFI connection!
   ;-D WLED_DISABLE_INFRARED ;; save flash space
   ;-D WLED_DISABLE_ALEXA    ;; save flash space
   -D LEDPIN=8 ;; onboard neopixel 5x5 Matrix. Attach your own LEDs to GPIO 20
@@ -1666,14 +1709,14 @@ lib_ignore =
   ;IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
   OneWire         ; not needed as we don't include USERMOD_DALLASTEMPERATURE
   U8g2            ; not needed as we don't include USERMOD_FOUR_LINE_DISPLAY
-; RAM:   [==        ]  23.1% (used 75636 bytes from 327680 bytes)
-; Flash: [==========]  96.0% (used 1510452 bytes from 1572864 bytes)
+; RAM:   [==        ]  23.7% (used 77780 bytes from 327680 bytes)
+; Flash: [========= ]  93.9% (used 1477456 bytes from 1572864 bytes)
 
 ;; MM environment for "seeed xiao -C3" boards
 [env:seeed_esp32c3_4MB_S]
 extends = env:esp32c3dev_4MB_M
 board = seeed_xiao_esp32c3
-platform = ${esp32.platformV4_pre}                             ;; standard IDF 4.4.1 platform
+platform = ${esp32.platformV4_pre}                             ;; standard IDF 4.4.1 platform - seems to work better for seeed xiao board
 platform_packages = ${esp32.platformV4_packages_pre}
 board_build.flash_mode = qio
 upload_speed = 460800
@@ -1688,7 +1731,7 @@ build_flags = ${common.build_flags} ${esp32c3.build_flags}
   ;-D WLED_DISABLE_ALEXA    ;; save flash space
   ;-D WLED_DISABLE_HUESYNC  ;; save flash space
   ;-D WLED_DISABLE_LOXONE   ;; save flash space
-  ;-D WLEDMM_WIFI_POWERON_HACK ;; use this _only_ if your device is not able to make a WiFI connection!
+  ;-D WLEDMM_WIFI_POWERON_HACK -DLOLIN_WIFI_FIX ;; use this _only_ if your device is not able to make a WiFI connection!
   -D LEDPIN=3  ;; attach your LEDs to GPIO3 aka "D1" / "A1"
   -D BTNPIN=9
   -D RLYPIN=-1 -D IRPIN=-1
@@ -1699,8 +1742,8 @@ build_flags = ${common.build_flags} ${esp32c3.build_flags}
 lib_deps = ${esp32c3.lib_deps} ${common_mm.lib_deps_S}
 ;lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
 monitor_filters = esp32_exception_decoder
-; RAM:   [==        ]  22.9% (used 75108 bytes from 327680 bytes)
-; Flash: [========= ]  90.5% (used 1423788 bytes from 1572864 bytes)
+; RAM:   [==        ]  23.8% (used 77908 bytes from 327680 bytes)
+; Flash: [========= ]  90.9% (used 1429302 bytes from 1572864 bytes)
 
 
 # ------------------------------------------------------------------------------
@@ -1883,8 +1926,14 @@ build_flags = ${esp32_4MB_V4_S_base.build_flags}
   -D WLED_DISABLE_BROWNOUT_DET
   -D SERVERNAME='"WLED-pico32-V4"'
   -D WLED_WATCHDOG_TIMEOUT=0
-  -D WLED_DISABLE_ADALIGHT  ;; WLEDMM this board does not have a serial-to-USB chip. Better to disable serial protocols, to avoid crashes (see upstream #3128)
   ; -D WLED_WATCHDOG_TIMEOUT=60 
+  -D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
+  -D WLED_DISABLE_ADALIGHT  ;; WLEDMM this board does not have a serial-to-USB chip. Better to disable serial protocols, to avoid crashes (see upstream #3128)
+  ; -D WLED_DISABLE_LOXONE
+  ; -D WLED_DISABLE_ALEXA
+  ; -D WLED_DISABLE_HUESYNC
+  ; -D WLED_DISABLE_MQTT
+  ; -D WLED_DISABLE_INFRARED
   ; -D WLED_DEBUG
   ; -D SR_DEBUG
   -D LEDPIN=2
@@ -1895,5 +1944,6 @@ build_flags = ${esp32_4MB_V4_S_base.build_flags}
   ; -D MCLK_PIN=0
   -D SR_ENABLE_DEFAULT  ;; enable audioreactive at first start - no need to manually set "enable", then reboot
   ; -D WLED_USE_MY_CONFIG
-; RAM:   [==        ]  24.5% (used 80436 bytes from 327680 bytes)
-; Flash: [========= ]  93.9% (used 1476341 bytes from 1572864 bytes)
+;lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
+; RAM:   [===       ]  25.4% (used 83144 bytes from 327680 bytes)
+; Flash: [==========]  96.4% (used 1516029 bytes from 1572864 bytes)