diff --git a/src/modules/klipper/filesystem/root/etc/systemd/system/klipper.service b/src/modules/klipper/filesystem/root/etc/systemd/system/klipper.service
index 5efb6e36b..7868b4319 100644
--- a/src/modules/klipper/filesystem/root/etc/systemd/system/klipper.service
+++ b/src/modules/klipper/filesystem/root/etc/systemd/system/klipper.service
@@ -17,3 +17,4 @@ EnvironmentFile=/home/pi/printer_data/systemd/klipper.env
 ExecStart=/home/pi/klippy-env/bin/python $KLIPPER_ARGS
 Restart=always
 RestartSec=10
+CPUAffinity=3
diff --git a/src/modules/piconfig/start_chroot_script b/src/modules/piconfig/start_chroot_script
index 8534ebdd2..16d68384e 100644
--- a/src/modules/piconfig/start_chroot_script
+++ b/src/modules/piconfig/start_chroot_script
@@ -99,4 +99,8 @@ EOF
 # Step 13: Fix locale
 echo_green "Generating and setting default locale to en_US.UTF-8..."
 # Use en_US.UTF-8 as default locale
-raspi-config nonint do_change_locale en_US.UTF-8
\ No newline at end of file
+raspi-config nonint do_change_locale en_US.UTF-8
+
+# Step 14: isolate cpu 3 for klipper
+echo_green "Isolating CPU 3 for Klipper..."
+sed -i 's/console=tty1/console=tty1 isolcpus=3/' "${PICONFIG_CMDLINE_TXT_FILE}"