Minor performance improvement

Model/Player/Backends/MPVBackend.swift

@@ -222,8 +222,10 @@ final class MPVBackend: PlayerBackend {
     func playStream(_ stream: Stream, of video: Video, preservingTime: Bool, upgrading: Bool) {
         #if !os(macOS)
             if model.presentingPlayer {
+                DispatchQueue.main.async {
                     UIApplication.shared.isIdleTimerDisabled = true
                 }
+            }
         #endif
 
         var captions: Captions?

Model/Player/PlayerModel.swift

@@ -459,13 +459,17 @@ final class PlayerModel: ObservableObject {
             return
         }
 
-        streamSelection = stream
-        playStream(
+        DispatchQueue.global(qos: .userInitiated).async {
+            DispatchQueue.main.async {
+                self.streamSelection = stream
+            }
+            self.playStream(
                 stream,
                 of: currentVideo,
-            preservingTime: !currentItem.playbackTime.isNil
+                preservingTime: !self.currentItem.playbackTime.isNil
             )
         }
+    }
 
     private func handlePresentationChange() {
         backend.setNeedsDrawing(presentingPlayer)

Model/Player/PlayerSponsorBlock.swift

@@ -95,6 +95,8 @@ extension PlayerModel {
 
     func resetSegments() {
         resetLastSegment()
-        restoredSegments = []
+        DispatchQueue.main.async { [weak self] in
+            self?.restoredSegments = []
+        }
     }
 }