diff --git a/ports/raspberrypi/boards/pimoroni_picosystem/mpconfigboard.mk b/ports/raspberrypi/boards/pimoroni_picosystem/mpconfigboard.mk
index 8dca786a5e0..28a3c6a641a 100644
--- a/ports/raspberrypi/boards/pimoroni_picosystem/mpconfigboard.mk
+++ b/ports/raspberrypi/boards/pimoroni_picosystem/mpconfigboard.mk
@@ -12,7 +12,13 @@ CIRCUITPY__EVE = 1
 
 CIRCUITPY_KEYPAD = 1
 CIRCUITPY_STAGE = 1
+CIRCUITPY_PICOGAME = 1
+CIRCUITPY_PICOGAME_FAST_DISPLAY = 1
 
 CIRCUITPY_AUDIOIO = 1
 
 FROZEN_MPY_DIRS += $(TOP)/frozen/circuitpython-stage/picosystem
+
+# The default is -O3. picogame does not fit at -O3; these loop passes keep the render
+# kernels within 1% of it.
+OPTIMIZATION_FLAGS = -O2 -funswitch-loops -fpredictive-commoning -fgcse-after-reload -ftree-partial-pre -fsplit-paths