diff --git a/.escheckrc b/.escheckrc
index 5cdc1dd4d3..f7bf7779c8 100644
--- a/.escheckrc
+++ b/.escheckrc
@@ -4,6 +4,7 @@
     "not": [
         "./dist/libraries/pdf.worker.js",
         "./dist/libraries/worker-bundle.js",
+        "./dist/libbitsub.*.js",
         "./dist/serviceworker.js"
     ]
 }
diff --git a/src/plugins/htmlVideoPlayer/plugin.js b/src/plugins/htmlVideoPlayer/plugin.js
index 9b4db45281..4a5951b47b 100644
--- a/src/plugins/htmlVideoPlayer/plugin.js
+++ b/src/plugins/htmlVideoPlayer/plugin.js
@@ -507,9 +507,11 @@ export class HtmlVideoPlayer {
 
         if (options.resetSubtitleOffset !== false) this.resetSubtitleOffset();
 
-        void import('libbitsub')
-            .then(({ warmup }) => warmup())
-            .catch((error) => console.warn('[libbitsub] worker prewarm failed; renderer fallback will be used', error));
+        if (appSettings.get('subtitlerenderpgs') === 'true') {
+            void import('libbitsub')
+                .then(({ warmup }) => warmup())
+                .catch((error) => console.warn('[libbitsub] worker prewarm failed; renderer fallback will be used', error));
+        }
 
         const elem = await this.createMediaElement(options);
         this.#applyAspectRatio(options.aspectRatio || this.getAspectRatio());