Choppy Playback

I put clips in a Project, try to view it and it is choppy. Tried Everything. Thing I tried are listed down below, might've forgot to put some stuff I tried. Idk what to do, and I need it for work. If I render the video. it works perfectly fine, but I can not review it in the playback feed. Can't be the clips I am using, they work perfectly fine everywhere but in Premiere Pro's Playback. Can anyone help me with this?

I tried...

Updating Windows

Restart PC

Shut Down / Load Up PC

Updating Premiere Pro

Uninstall and Reinstall Premiere Pro

Using Different Clips, Recorded with different Recording Devices

Cleared Cach & Database

Close Program / Reopen Program

Closed Program through Task Manager

Reset All Premiere Settings

Render in to out

Lowered Playback Quality to the lowest it can be

Disabling High Quality Playback

Created a New Project

Clear %TEMP% Files (CMD + R)

Changed Memory Usage to 32GB Reserved for Premiere Pro

Optimize Rendering Set to Performance

Changed Project Settings (Renderer to my GPU

Checked Performance from Computer using Task Manager (Everything Running Smoothly)

Cleaned Dust out of my PC Fans

I don't know what I could be missing. Here is a video of what is happening...