Video Player Freezes During Playback

My Video Player freezes a few frames after playing, while the audio continue on.
I’m running my system on a Macbook, there’s only a few tracks loaded; however there are multiple video files loaded into the project (Client sent me several scenes, and I’m scoring them in one project)
Any help to reduce the lag? Thank you thank you! It’s difficult to score-to-picture when the picture isn’t running smoothly


Are you on Mac or Windows, please?


If anyone would like any additional information, please ask. It is a consistent issue, thanks