Sims 4 Low FPS on GTX 1060 6gb

@SimmerGeorge  There are a number of Windows update errors in your dxdiag, and you're also one build behind the current one.  That's not necessarily a problem—Windows 10 build 1903 is very much supported and shouldn't present any issues with Sims 3.  But the update failures could be slowing down your system.  Plus, a new Windows build (2004) will be released in a few days, so now's a good time to update to 1909.

Please first run DISM and sfc to address any underlying errors that might be preventing Windows from updating properly.  Here's how:

• Hit Windows key-X
• Choose either “PowerShell (Administrator)” or “Command prompt (Administrator),” whichever option is offered
• Inside the window that appears, copy and paste “DISM.exe /Online /Cleanup-image /Restorehealth” without quotes into the window, and enter
• The system will start validating soon. If it throws an error, please list it here
• After it reaches 100%, hit Windows key-X again
• Again, choose “PowerShell (Administrator)” or “Command prompt (Administrator)”
• Inside the window, copy and paste “sfc /scannow” without quotes into the window, and enter
• Post the message you receive here

If sfc says it found corrupt files and was unable to repair some of them, please stop here.  Otherwise, manually run any pending updates: restart your computer, hit Windows key-i, select Update & Security, and click the button to check for updates.  If there are a number of them, it make take a few tries, with restarts in between, to run them all.

When you're done running these updates, you can update to build 1909, if Windows didn't already download it and you don't have a good reason for staying on 1903.

Please test the game again.  If you still have low framerates, then yes, the next step is hardware monitoring, to test not only temperatures but the overall performance of the various components of your system.  Let me know, and I'll post instructions.