Preview window lag

Hello, so I recently built a new editing PC. Switching from my macbook air to this new PC has been great, but for some reason my preview window has a tendency to lag heavily whenever I try to change the position of something. For example, I was trying to use the write on effect and I couldn't even drag the brush in the preview window. I would try to change the position of it in the effects control tab and it would take ages to update and sometimes it'll only update if I click on the timeline for some reason. The write on effect isn't the only one this would happen for it's just the most recent example. What could be causing this? I have an AMD 3600x 6 core processor and 32 gb of ram. My 2017 macbook air wouldn't even have this happen and it had an old processor and only 8 gb of ram.