Adobe Premiere Preview/Timeline/Render Lag!?

Hello!

I'm hoping that someone can help me because I'm in quite the pickle.

I don't know what changed but before my video previews and timeline and rendering were working fine but now everything seems to lag. I just got a new computer and all of it's specs should be completely fine for running adobe premiere.

What happens is I will import a video file that I want to edit and whether I drag it into the preview panel or the timeline - when I play the video it will lag and look like the frame rate is dropping like crazy. I'm trying to play .mov videos of PC Gameplay and the video is choppy. The audio works fine but there's also a delay when I press play (spacebar). This make's it pretty much impossible to edit any videos unless I spend countless hours waiting for the video to play through. Also, rendering takes forever too. I've tried everything I can from looking stuff up online and I'm at a loss. I've updated all of my adobe software and tried fiddling around with everything I can in the preferences and project settings. I've also noticed in the project settings under General and Renderer, the option is greyed out. I've watched a video on how to unlock this feature and enable the CUDO option but this still doesn't fix my problem.

I don't understand what's going on because when I first installed everything it worked fine and then all of a sudden the lag started. I've tried starting out new projects and I just can't figure out what the problem is. Any help with this would be awesome.

I have Windows 10 64 bit

Processor: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz

Installed memory (RAM): 16.0 GB (15.9 GB usable)

I have NVIDIA GeForce GTX 1060 6GB (which I don't think adobe premiere is recognizing either)

I've updated everything as best as I can and I don't know what the problem is