Sims 4 huge fps drop and lag after introducing the last event

HI Lisostep0306​ 

Could you post your Computer's DxDiag?

- Press Windows-Key + R
- Type: DxDiag
- Click on Save all Information.
- Attach the Text File to your post

Thank you for reaching out, attaching the DxDiag hereto. It shows I have Direct x12, dont know if this can be a potential issue.

Lisostep0306​  Your dxdiag crashed while running and is therefore missing some information.  It might be a fluke, and there are a couple potential issues it does list that are worth addressing first.

Please don't use Memory Boost for now, not until the game is running as it should in normal mode.  Please also kill Nahimic in the Task Manager's background processes list before you open Sims 4.  It'll restart with Windows, but it should stay disabled until then.  If you don't see anything with Nahimic in the name, look for something called A-Volute.

If these don't help, please post a new dxdiag.  Please also look for new errors in the Reliability Monitor.  Click Windows key-R and enter "perfmon /rel" without quotes, and you'll see a chart of errors and updates with a column for each day.  Today is on the right.

Look for an error that happened during your most recent play session, after doing the above.  If you find one, double-click it to see more details, then copy that info and paste it into a reply here.  If you don't see a new error, check back in an hour or so—the Reliability Monitor doesn't always update right away.