Im running Avast Free Antivirus v. 18.7.2354; OS: Windows 10 64Bit.
I noticed that for 2/3 days im getting Frame drops frequently.
I checked on Processexplorer whats taking all the resources and it was aswidagent.exe all the time.
Assuming your issue is not caused by ‘other’ conflicting Security Software installed on your system follow these instructions.
What other security software do you have installed?
The only way Avast and Windows Defender will (should) get along would be if Avast is in Passive Mode. It would be ok to run Windows Defender in real-time active mode in that case.