1. Clear all cache files!
2 . Go to preferences - audio hardware - default input - set to No Input!
3. Go to file - project setings - general - renderer - set - mercury playback engine software only!
4. Hit (press) play ( space) let Premire pro play file 1 min - go to project settings again and press
mercyry playback engine CUDA or Open Cl , and lagg will gone!
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