Windows 10 Does antimalware service executable and desktop window manager usually to take so much memory?

[hiperarchy]

I was experiencing some lag so i decided to open task manager to see what was going on and i saw that antimalware service executable and desktop window manager taking so much memory. I was pretty confused and tried to fix it but most methods on youtube didnt fix it. Right now antimalware service executable and desktop window manager are 150 mb of memory but sometimes they take up to 400 mb of memory. Is there any way to avoid this?

 

[ussnorway]

thats normal when running scan & diagnosis