Playback slow and freezing up but video seems to be rendering fine

[defaultgbwofyi6fthr]

Playback is slow and freezing up, but when I scrub through the video it loads just fine, with audio and everything. It tends to be worse when I import a new video or change something like the scale of the video. I'm convinced that it's not my computer being slow because of how I can scrub through just fine, even faster than the playback speed. Is there anything else I can do to fix playback? I've checked things like GPU acc, playback resolution, and have high quality playback off,

[Jeff Bugbee]

Specs of video file?

Is the file located on an internal drive or external?

[defaultgbwofyi6fthr]

always internal drive, and the specs vary because I have different video sources for the clips. They seem to be about 1080p quality and 60 frames, usually .mov file type. Is there any more information you need? I don't know what other specs to provide. 

[John T Smith]

Some things to do, and more information needed for someone to help...
-Troubleshooting https://community.adobe.com/t5/Premiere-Pro/Unofficial-Premiere-Pro-Troubleshooting-Guide/td-p/87892...
-PPro Editing Information FAQ https://community.adobe.com/t5/Premiere-Pro/FAQ-What-information-should-I-provide-when-asking-a-ques...
-Mac only https://community.adobe.com/t5/Premiere-Pro/FAQ-Basic-Troubleshooting-amp-Maintenance-for-Premiere-P...