Why has QuickTime suddenly worsened?
Since I updated to macOS Tahoe, QuickTime Player stutters repeatedly while playing my GoPro/drone footage. It's not a constant freeze: the video does play, but there are multiple small stutters per second that make it pretty much unwatchable.
The issue happens both with footage straight from the camera and with files exported from Gyroflow (stabilized clips). Occasionally the same thing happens in VLC too, though less frequently.
My setup:
- MacBook Air M2, 8GB RAM, 256GB SSD
- Files are typically 4K H.264/H.265
Things I've already tried:
- Restarting the Mac
- Playing files from both internal SSD and external drive
Before the Tahoe update everything played back perfectly fine in quicktime and not in VLC, after it they inverted, so I'm pretty confident the update is the culprit. Could it be a GPU/media engine scheduling issue introduced with Tahoe? Or maybe some background process added by the new OS is eating enough resources to cause this?
Has anyone else noticed this? Any fix or workaround would be appreciated.