diff --git a/package-lock.json b/package-lock.json
index d0829215..029d4982 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
                 "detect-browser": "^5.2.0",
                 "hls.js": "^0.14.17",
                 "jquery": "^3.6.0",
-                "libass-wasm": "^4.0.0",
+                "libass-wasm": "https://codeload.github.com/jellyfin/JavascriptSubtitlesOctopus/tar.gz/4.0.0-jf-smarttv",
                 "ngx-infinite-scroll": "^10.0.1",
                 "popper.js": "^1.16.1",
                 "rxjs": "^6.6.6",
@@ -8515,8 +8515,9 @@
         },
         "node_modules/libass-wasm": {
             "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/libass-wasm/-/libass-wasm-4.0.0.tgz",
-            "integrity": "sha512-+fCkT3fP3b6wGg3s+VrUrFcW7IScFjVWlJq1aGu0gtiIw0RIPKMVdHqOHba2zkSYrfeJooB4Zn20fTORoY9brg=="
+            "resolved": "https://codeload.github.com/jellyfin/JavascriptSubtitlesOctopus/tar.gz/4.0.0-jf-smarttv",
+            "integrity": "sha512-538243/sR62HARJdkKKyfkdSu4Y6KxE3vJc2fNLdQOoApupsauXiM6FlRuCdpHDHe34pbUTEsHK4vbBo7b9Jdg==",
+            "license": "MIT"
         },
         "node_modules/license-webpack-plugin": {
             "version": "2.3.11",
@@ -23316,9 +23317,8 @@
             }
         },
         "libass-wasm": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/libass-wasm/-/libass-wasm-4.0.0.tgz",
-            "integrity": "sha512-+fCkT3fP3b6wGg3s+VrUrFcW7IScFjVWlJq1aGu0gtiIw0RIPKMVdHqOHba2zkSYrfeJooB4Zn20fTORoY9brg=="
+            "version": "https://codeload.github.com/jellyfin/JavascriptSubtitlesOctopus/tar.gz/4.0.0-jf-smarttv",
+            "integrity": "sha512-538243/sR62HARJdkKKyfkdSu4Y6KxE3vJc2fNLdQOoApupsauXiM6FlRuCdpHDHe34pbUTEsHK4vbBo7b9Jdg=="
         },
         "license-webpack-plugin": {
             "version": "2.3.11",
diff --git a/package.json b/package.json
index 1937230b..67bd2292 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
         "detect-browser": "^5.2.0",
         "hls.js": "^0.14.17",
         "jquery": "^3.6.0",
-        "libass-wasm": "^4.0.0",
+        "libass-wasm": "https://codeload.github.com/jellyfin/JavascriptSubtitlesOctopus/tar.gz/4.0.0-jf-smarttv",
         "ngx-infinite-scroll": "^10.0.1",
         "popper.js": "^1.16.1",
         "rxjs": "^6.6.6",
diff --git a/src/app/pages/player/player.component.ts b/src/app/pages/player/player.component.ts
index 0057b288..44ada496 100644
--- a/src/app/pages/player/player.component.ts
+++ b/src/app/pages/player/player.component.ts
@@ -485,7 +485,8 @@ export class PlayerComponent implements OnInit, OnDestroy, AfterViewInit
 					this.subtitlesManager = new SubtitlesOctopus({
 						video: this.player,
 						subUrl: `subtitle/${subtitle.slug}`,
-						fonts: Object.values(fonts)
+						fonts: Object.values(fonts),
+						renderMode: "fast"
 					});
 				}
 				else
diff --git a/subtitles-octopus-fix.sh b/subtitles-octopus-fix.sh
index 64e7b574..b76010e5 100755
--- a/subtitles-octopus-fix.sh
+++ b/subtitles-octopus-fix.sh
@@ -8,5 +8,5 @@
 LINE_204="                self.video.addEventListener(\\\"loadedmetadata\\\", function listener(e) {"
 LINE_205="                    e.target.removeEventListener(e.type, listener);"
 
-sed -i "204s/.*/$LINE_204/" node_modules/libass-wasm/dist/js/subtitles-octopus.js
-sed -i "205s/.*/$LINE_205/" node_modules/libass-wasm/dist/js/subtitles-octopus.js
+sed -i "236s/.*/$LINE_204/" node_modules/libass-wasm/dist/js/subtitles-octopus.js
+sed -i "237s/.*/$LINE_205/" node_modules/libass-wasm/dist/js/subtitles-octopus.js