diff --git a/platformio.ini b/platformio.ini
index 5d2d6f9..b9cd77f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -212,6 +212,8 @@ custom_sdkconfig        = '# CONFIG_OPENTHREAD_ENABLED is not set'
                           '# CONFIG_LWIP_IPV6 is not set'
                           '# CONFIG_LWIP_IPV6_AUTOCONFIG is not set'
                           '# CONFIG_LWIP_PPP_SUPPORT is not set'
+                          CONFIG_COMPILER_OPTIMIZATION_PERF=y
+                          '# CONFIG_COMPILER_OPTIMIZATION_SIZE is not set'
 
 [env:otthing]
 extends                 = esp32_defaults