diff --git a/firmware/application/CMakeLists.txt b/firmware/application/CMakeLists.txt
index 4c50ccfe..fe6b2be8 100644
--- a/firmware/application/CMakeLists.txt
+++ b/firmware/application/CMakeLists.txt
@@ -44,7 +44,7 @@ if(cpp20_supported)
 else()
 	set(USE_CPPOPT "-std=c++17")
 endif()
-set(USE_CPPOPT "${USE_CPPOPT} -fno-rtti -fno-exceptions -Weffc++ -Wuninitialized -Wno-volatile")
+set(USE_CPPOPT "${USE_CPPOPT} -flto -fno-rtti -fno-exceptions -Weffc++ -Wuninitialized -Wno-volatile")
 
 # Enable this if you want the linker to remove unused code and data
 set(USE_LINK_GC yes)
diff --git a/firmware/baseband/CMakeLists.txt b/firmware/baseband/CMakeLists.txt
index 53262b06..f0490b00 100644
--- a/firmware/baseband/CMakeLists.txt
+++ b/firmware/baseband/CMakeLists.txt
@@ -32,7 +32,7 @@ include(CheckCXXCompilerFlag)
 project(baseband_shared)
 
 # Compiler options here.
-set(USE_OPT "-O2 -g -falign-functions=16 -fno-math-errno --specs=nano.specs")
+set(USE_OPT "-O3 -g -falign-functions=16 -fno-math-errno --specs=nano.specs")
 
 # C specific options here (added to USE_OPT).
 set(USE_COPT "-std=gnu99")
@@ -44,7 +44,7 @@ if(cpp20_supported)
 else()
 	set(USE_CPPOPT "-std=c++17")
 endif()
-set(USE_CPPOPT "${USE_CPPOPT} -fno-rtti -fno-exceptions -Weffc++ -Wuninitialized -Wno-volatile")
+set(USE_CPPOPT "${USE_CPPOPT} -flto -fno-rtti -fno-exceptions -Weffc++ -Wuninitialized -Wno-volatile")
 
 # Enable this if you want the linker to remove unused code and data
 set(USE_LINK_GC yes)