**OS and Version (please complete the following information):**
- Operating System: windows 64bit (Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz 3.19 GHz)
- Software Version: latest version
**Describe the bug**
for Snapdragon 8 Gen 2 & 8 Gen3 based mobile phones， all 4K HEVC 60fps mp4 recorded by build-in Camera App，
does not play smoothly and stutters in this software. it seems a common case.
**Steps To Reproduce**
1. Start Shotcut
2. Load the mp4 file (you may record by any model of such mobile phones which equipped above SoCs)
3. Playback
**Expected behavior**
A smooth playback
**Screenshots**
n/a