diff --git a/Sources/Screen/Screen.swift b/Sources/Screen/Screen.swift
index 2d736d8de..0e39a6f1b 100644
--- a/Sources/Screen/Screen.swift
+++ b/Sources/Screen/Screen.swift
@@ -180,10 +180,9 @@ extension Screen: ChoreographerDelegate {
         if let dictionary = CVBufferGetAttachments(pixelBuffer, .shouldNotPropagate) {
             CVBufferSetAttachments(pixelBuffer, dictionary, .shouldPropagate)
         }
-        let now = videoPresentationTimeStamp == .invalid ?
-            CMTime(seconds: timestamp, preferredTimescale: 1000000000) :
-            videoPresentationTimeStamp
+        let now = makePresentationTimeStamp(timestamp)
         guard currentPresentationTimeStamp < now else {
+            print("⚠️", currentPresentationTimeStamp, now)
             return
         }
         var timingInfo = CMSampleTimingInfo(
@@ -206,4 +205,10 @@ extension Screen: ChoreographerDelegate {
         }
         currentPresentationTimeStamp = now
     }
+
+    private func makePresentationTimeStamp(_ timestamp: TimeInterval) -> CMTime {
+        return videoPresentationTimeStamp == .invalid ?
+            CMTime(seconds: timestamp, preferredTimescale: 1000000000) :
+            videoPresentationTimeStamp
+    }
 }