From a6376cbcbdd1871de4c117cf7ebcbdf83f5252eb Mon Sep 17 00:00:00 2001
From: coolGi <me@coolgi.dev>
Date: Thu, 26 Mar 2026 06:11:43 +1300
Subject: [PATCH] nixos/monado: fix performance being degraded

---
 nixos/modules/services/hardware/monado.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/services/hardware/monado.nix b/nixos/modules/services/hardware/monado.nix
index e7d9bb45b711..488f0af850fb 100644
--- a/nixos/modules/services/hardware/monado.nix
+++ b/nixos/modules/services/hardware/monado.nix
@@ -81,6 +81,9 @@ in
           IPC_EXIT_ON_DISCONNECT = mkDefault "off";
           # Needed to avoid libbasalt.so: cannot open shared object file: No such file or directory
           VIT_SYSTEM_LIBRARY_PATH = mkDefault "${pkgs.basalt-monado}/lib/libbasalt.so";
+          # Improves performance
+          # https://gitlab.com/gabmus/envision/-/blob/2f731053537044b1f72b259bea795473ea0c205a/src/profiles/lighthouse.rs#L19
+          U_PACING_APP_USE_MIN_FRAME_PERIOD = mkDefault "1";
         };
 
         preStart = mkIf cfg.forceDefaultRuntime ''