diff --git a/wled00/bus_manager.cpp b/wled00/bus_manager.cpp
index bbae989d63..a29ae46817 100644
--- a/wled00/bus_manager.cpp
+++ b/wled00/bus_manager.cpp
@@ -719,7 +719,12 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
 
 #endif
 
-  mxconfig.clkphase = false;
+  // mxconfig.double_buff = true; // <------------- Turn on double buffer
+  // mxconfig.driver = HUB75_I2S_CFG::ICN2038S;  // experimental - use specific shift register driver
+  // mxconfig.latch_blanking = 3;
+  // mxconfig.i2sspeed = HUB75_I2S_CFG::HZ_10M;  // experimental - 5MHZ should be enugh, but colours looks slightly better at 10MHz
+  // mxconfig.min_refresh_rate = 90;
+  mxconfig.clkphase = false; // can help in case that the leftmost column is invisible, or pixels on the right side "bleeds out" to the left.
   mxconfig.chain_length = max((u_int8_t) 1, min(bc.pins[0], (u_int8_t) 4)); // prevent bad data preventing boot due to low memory
 
   USER_PRINTF("MatrixPanel_I2S_DMA config - %ux%u length: %u\n", mxconfig.mx_width, mxconfig.mx_height, mxconfig.chain_length);
@@ -769,15 +774,7 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
     if (_ledBuffer) free(_ledBuffer);                 // should not happen
     if (_ledsDirty) free(_ledsDirty);                 // should not happen
 
-    #if defined(ARDUINO_ARCH_ESP32) && defined(BOARD_HAS_PSRAM) && defined(WLED_USE_PSRAM)
-    if (psramFound()){
-      _ledsDirty = (byte*) ps_malloc(getBitArrayBytes(_len));  // create LEDs dirty bits
-    } else {
-      _ledsDirty = (byte*) malloc(getBitArrayBytes(_len));  // create LEDs dirty bits
-    }
-    #else
     _ledsDirty = (byte*) malloc(getBitArrayBytes(_len));  // create LEDs dirty bits
-    #endif
 
     if (_ledsDirty == nullptr) {
       display->stopDMAoutput();
@@ -789,7 +786,7 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
     setBitArray(_ledsDirty, _len, false);             // reset dirty bits
 
     if (mxconfig.double_buff == false) {
-      #if defined(ARDUINO_ARCH_ESP32) && defined(BOARD_HAS_PSRAM) && defined(WLED_USE_PSRAM)
+      #if defined(CONFIG_IDF_TARGET_ESP32S3) && defined(BOARD_HAS_PSRAM) && defined(WLED_USE_PSRAM) && defined(CONFIG_SPIRAM_MODE_OCT)
       if (psramFound()){
         _ledBuffer = (CRGB*) ps_calloc(_len, sizeof(CRGB));  // create LEDs buffer (initialized to BLACK)
       } else {