diff --git a/src/dimensioner/main.py b/src/dimensioner/main.py
index 634933e..c63224c 100644
--- a/src/dimensioner/main.py
+++ b/src/dimensioner/main.py
@@ -87,6 +87,8 @@ ZERO_BUTTON_PIN = 13 # Pin to read if hardware zero button is pressed
 UNITS_BUTTON_PIN = 14 # Pin to read if hardware unit change button is pressed
 FIRMWARE_VERSION = "1.0"
 
+machine.freq(240000000) # Set CPU to 240MHz (about twice as fast as default)
+
 #
 # USB configuration
 #