diff --git a/flake.nix b/flake.nix
index 3720f9e3..ea170d36 100644
--- a/flake.nix
+++ b/flake.nix
@@ -52,7 +52,8 @@
               nix = {
                 enable = true;
                 settings = {
-                  cores = 1;
+                  cores = 2;
+                  max-jobs = 1;
                   trusted-users = ["root" user];
                   experimental-features = ["nix-command" "flakes"];
                   auto-optimise-store = true;
diff --git a/home/waybar/default.nix b/home/waybar/default.nix
index ff1b37bb..51334b9a 100644
--- a/home/waybar/default.nix
+++ b/home/waybar/default.nix
@@ -183,7 +183,7 @@
       "custom/weather" = {
         "format" = "{}°";
         "tooltip" = true;
-        "interval" = 3600;
+        "interval" = 900; # Every 15 minutes
         "exec" = "${pkgs.wttrbar}/bin/wttrbar --location Didcot --hide-conditions";
         "return-type" = "json";
       };