diff --git a/Sources/macSubtitleOCR/macSubtitleOCR.swift b/Sources/macSubtitleOCR/macSubtitleOCR.swift
index 35d83ff..6515d82 100644
--- a/Sources/macSubtitleOCR/macSubtitleOCR.swift
+++ b/Sources/macSubtitleOCR/macSubtitleOCR.swift
@@ -27,6 +27,9 @@ struct macSubtitleOCR: AsyncParsableCommand {
     @Option(wrappedValue: "en", help: "The input image language(s)")
     var language: String
 
+    @Flag(help: "Use multithreading for OCR processing")
+    var multithreaded = false
+
     @Flag(help: "Use internal decoder (experimental)")
     var internalDecoder = false
 
@@ -159,16 +162,28 @@ struct macSubtitleOCR: AsyncParsableCommand {
                     logger.warning("Error saving image: \(error.localizedDescription)")
                 }
             }
-
-            async let (sub, jsonResult) = doOCR(
-                image: image!,
-                width: subtitle.imageWidth!,
-                height: subtitle.imageHeight!,
-                index: index,
-                start: start,
-                end: end)
-            await srtSubtitles.append(sub)
-            await json.append(contentsOf: jsonResult)
+            if multithreaded {
+                // Process the subtitle asynchronously
+                async let (sub, jsonResult) = doOCR(
+                    image: image!,
+                    width: subtitle.imageWidth!,
+                    height: subtitle.imageHeight!,
+                    index: index,
+                    start: start,
+                    end: end)
+                await srtSubtitles.append(sub)
+                await json.append(contentsOf: jsonResult)
+            } else {
+                let (sub, jsonResult) = await doOCR(
+                    image: image!,
+                    width: subtitle.imageWidth!,
+                    height: subtitle.imageHeight!,
+                    index: index,
+                    start: start,
+                    end: end)
+                srtSubtitles.append(sub)
+                json.append(contentsOf: jsonResult)
+            }
             subtitleIndex += 1
         }