diff --git a/hosts/hydra/hydra.nix b/hosts/hydra/hydra.nix
index 60c97c1f..e10c201a 100644
--- a/hosts/hydra/hydra.nix
+++ b/hosts/hydra/hydra.nix
@@ -43,11 +43,15 @@ in {
     '';
   };
   systemd.services.hydra-evaluator.serviceConfig = {
+    CPUWeight = 2;
     MemoryAccounting = true;
     MemoryHigh = "32G";
     MemoryMax = "40G";
     MemorySwapMax = "8G";
   };
+  systemd.services.nix-daemon.serviceConfig = {
+    CPUWeight = 5;
+  };
 
   services.nginx =
     let