diff --git a/internal/pkg/config/default.go b/internal/pkg/config/default.go
index 73e7808..a3cc646 100644
--- a/internal/pkg/config/default.go
+++ b/internal/pkg/config/default.go
@@ -10,9 +10,10 @@ func Default() Cfg {
 			CacheLifetime: time.Hour * 24 * 31,
 		},
 		Tracking: &Umami{
-			ScriptSrc:   "https://umami.schreifuchs.ch/script.js",
-			RecorderSrc: "https://umami.schreifuchs.ch/recorder.js",
-			WebsiteID:   "54d8a379-77d5-4c20-b46d-5c9a6c9e39bd",
+			ScriptSrc:          "https://umami.schreifuchs.ch/script.js",
+			RecorderSrc:        "https://umami.schreifuchs.ch/recorder.js",
+			WebsiteID:          "54d8a379-77d5-4c20-b46d-5c9a6c9e39bd",
+			PerformanceEnabled: true,
 		},
 		Gallery: &Gallery{
 			Path: "photos",
diff --git a/internal/pkg/config/resource.go b/internal/pkg/config/resource.go
index 922be12..a15536e 100644
--- a/internal/pkg/config/resource.go
+++ b/internal/pkg/config/resource.go
@@ -52,10 +52,10 @@ type Gallery struct {
 }
 
 type Umami struct {
-	ScriptSrc   string `env:"SCRIPT_SRC"`
-	RecorderSrc string `env:"RECORDER_SRC"`
-
-	WebsiteID string `env:"WEBSITE_ID"`
+	ScriptSrc          string `env:"SCRIPT_SRC"`
+	RecorderSrc        string `env:"RECORDER_SRC"`
+	WebsiteID          string `env:"WEBSITE_ID"`
+	PerformanceEnabled bool   `env:"PERFORMANCE_ENABLED`
 }
 
 func Read(ctx context.Context) (cfg Cfg, err error) {
diff --git a/web/layouts/base.templ b/web/layouts/base.templ
index 27bc935..f38daa6 100644
--- a/web/layouts/base.templ
+++ b/web/layouts/base.templ
@@ -19,7 +19,12 @@ templ head(cfg config.Cfg, title string) {
 		<script src="/js/hx-head.min.js"></script>
 		<script src="/js/hx-preload.min.js"></script>
 		<script src="/js/preload-links.min.js"></script>
-		<script src={ cfg.Tracking.ScriptSrc } data-website-id={ cfg.Tracking.WebsiteID } performance="true"></script>
+		<script
+			src={ cfg.Tracking.ScriptSrc }
+			data-website-id={ cfg.Tracking.WebsiteID }
+			data-performance={cfg.Tracking.PerformanceEnabled }
+		></script>
+		
 		if cfg.Tracking.RecorderSrc != "" {
 			<script src={ cfg.Tracking.RecorderSrc } data-website-id={ cfg.Tracking.WebsiteID }></script>
 		}