diff --git a/firmware/sdkconfig.defaults b/firmware/sdkconfig.defaults
index cd4da0d..805023e 100644
--- a/firmware/sdkconfig.defaults
+++ b/firmware/sdkconfig.defaults
@@ -37,11 +37,11 @@ CONFIG_LV_USE_FONT_COMPRESSED=y
 CONFIG_SLAVE_IDF_TARGET_ESP32C6=y
 CONFIG_ESP_HOSTED_CP_TARGET_ESP32C6=y
 CONFIG_ESP_HOSTED_P4_DEV_BOARD_FUNC_BOARD=y
-CONFIG_WIFI_RMT_STATIC_RX_BUFFER_NUM=8
-CONFIG_WIFI_RMT_DYNAMIC_RX_BUFFER_NUM=24
-CONFIG_WIFI_RMT_DYNAMIC_TX_BUFFER_NUM=24
+CONFIG_WIFI_RMT_STATIC_RX_BUFFER_NUM=16
+CONFIG_WIFI_RMT_DYNAMIC_RX_BUFFER_NUM=32
+CONFIG_WIFI_RMT_DYNAMIC_TX_BUFFER_NUM=64
 CONFIG_WIFI_RMT_AMPDU_TX_ENABLED=y
-CONFIG_WIFI_RMT_TX_BA_WIN=16
+CONFIG_WIFI_RMT_TX_BA_WIN=32
 CONFIG_WIFI_RMT_AMPDU_RX_ENABLED=y
 CONFIG_WIFI_RMT_RX_BA_WIN=16
 
@@ -51,7 +51,7 @@ CONFIG_ESP_HOSTED_DFLT_TASK_FROM_SPIRAM=n
 # hosted 2.x: keep internal RAM for task stacks; buffers go to PSRAM
 CONFIG_ESP_HOSTED_MEMPOOL_PREFER_SPIRAM=y
 # conservative SDIO clock for first data-path proof (raise after verification)
-CONFIG_ESP_HOSTED_SDIO_CLOCK_FREQ_KHZ=10000
+CONFIG_ESP_HOSTED_SDIO_CLOCK_FREQ_KHZ=20000
 
 # headroom for diag event handlers that touch LVGL
 CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE=4096
@@ -59,3 +59,7 @@ CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE=4096
 # 1-bit SDIO: fixes the "Unrecoverable host sdio state" wedge family
 # (esp-hosted-mcu #167/#148); 2.5MB/s is ~80x what voice needs
 CONFIG_ESP_HOSTED_SDIO_1_BIT_BUS=y
+
+# absorb the mic-audio upstream burst without stalling the SDIO write
+CONFIG_ESP_HOSTED_SDIO_TX_Q_SIZE=32
+CONFIG_ESP_HOSTED_SDIO_RX_Q_SIZE=32