Jaxx776 Does DirectX 11 mode help?
For the BlueScreens, they wouldn't be directly causing any issues in Sims 4 unless they were happening while you played. But there could be an underlying issue affecting the game and also triggering the BSODs. If you'd like my help troubleshooting, I'd need some crash dumps. Go here:
C:\Windows\Minidump
For the most recent two or three files, right-click them and select Copy, then right-click your desktop and select Paste. Zip them together: right-click and select Send to > Compressed (zip) file. Upload the .zip to a free filesharing site (Google Drive, Dropbox, etc.) and link it here.