diff --git a/src/SmartLeds.h b/src/SmartLeds.h
index 262b071..d4c9571 100644
--- a/src/SmartLeds.h
+++ b/src/SmartLeds.h
@@ -194,8 +194,10 @@ class SmartLed {
 
 #if defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3)
 #define _SMARTLEDS_SPI_HOST SPI2_HOST
+#define _SMARTLEDS_SPI_DMA_CHAN SPI_DMA_CH_AUTO
 #else
 #define _SMARTLEDS_SPI_HOST HSPI_HOST
+#define _SMARTLEDS_SPI_DMA_CHAN 1
 #endif
 
 class Apa102 {
@@ -225,10 +227,11 @@ class Apa102 {
     static const int FINAL_FRAME_SIZE = 4;
     static const int TRANS_COUNT = 2 + 8;
 
-    Apa102(int count, int clkpin, int datapin, BufferType doubleBuffer = SingleBuffer)
+    Apa102(int count, int clkpin, int datapin, BufferType doubleBuffer = SingleBuffer, int clock_speed_hz = 1000000)
         : _count(count)
         , _firstBuffer(new ApaRgb[count])
         , _secondBuffer(doubleBuffer ? new ApaRgb[count] : nullptr)
+        , _transCount(0)
         , _initFrame(0) {
         spi_bus_config_t buscfg;
         memset(&buscfg, 0, sizeof(buscfg));
@@ -241,13 +244,13 @@ class Apa102 {
 
         spi_device_interface_config_t devcfg;
         memset(&devcfg, 0, sizeof(devcfg));
-        devcfg.clock_speed_hz = 1000000;
+        devcfg.clock_speed_hz = clock_speed_hz;
         devcfg.mode = 0;
         devcfg.spics_io_num = -1;
         devcfg.queue_size = TRANS_COUNT;
         devcfg.pre_cb = nullptr;
 
-        auto ret = spi_bus_initialize(_SMARTLEDS_SPI_HOST, &buscfg, 1);
+        auto ret = spi_bus_initialize(_SMARTLEDS_SPI_HOST, &buscfg, _SMARTLEDS_SPI_DMA_CHAN);
         assert(ret == ESP_OK);
 
         ret = spi_bus_add_device(_SMARTLEDS_SPI_HOST, &devcfg, &_spi);
@@ -375,7 +378,7 @@ class LDP8806 {
         devcfg.queue_size = TRANS_COUNT_MAX;
         devcfg.pre_cb = nullptr;
 
-        auto ret = spi_bus_initialize(_SMARTLEDS_SPI_HOST, &buscfg, 1);
+        auto ret = spi_bus_initialize(_SMARTLEDS_SPI_HOST, &buscfg, _SMARTLEDS_SPI_DMA_CHAN);
         assert(ret == ESP_OK);
 
         ret = spi_bus_add_device(_SMARTLEDS_SPI_HOST, &devcfg, &_spi);