diff --git a/systemd/tray-apps/protonmail-bridge.service b/systemd/tray-apps/protonmail-bridge.service
index 34bfc54..ea94e66 100644
--- a/systemd/tray-apps/protonmail-bridge.service
+++ b/systemd/tray-apps/protonmail-bridge.service
@@ -6,7 +6,7 @@ After=tray-apps.target
 
 [Service]
 # Prevent lag when syncing
-Nice=15
+Nice=19
 ExecStart=/usr/bin/protonmail-bridge --no-window
 
 [Install]