Avast started slowing down my PC. Is there any way to fix this ?

[rotemfrm]

I was using Avast Free Antivirus, and for a while my PC was slowing down, there were many games I could hardly play at all, they were lagging and freezing, downloads were ceasing (It's probably not the right term, excuse my English). Yesterday I saw this in my task manager :

https://preview.redd.it/sazq78goq1f81.png?width=1205&format=png&auto=webp&s=9f32ff55a70c65a65aa5ee8d7f2192b19e91f433

I tried fixing it (there is a post that explains how to do it in this forum), and it didn't help at all. So I removed it, and it's like my PC came to life. I could play Outriders for the first time without crashes and hours of loading screens, downloads were finishing. So now I don't have an antivirus at all. Is there any chance to go back to Avast ?
Thanks in advance.

[Asyn]

Please attach your screenshot(s), some of us don't follow external links.

[r@vast]

I was using Avast Free Antivirus, and for a while my PC was slowing down, there were many games I could hardly play at all, they were lagging and freezing, downloads were ceasing (It's probably not the right term, excuse my English). Yesterday I saw this in my task manager :

https://preview.redd.it/sazq78goq1f81.png?width=1205&format=png&auto=webp&s=9f32ff55a70c65a65aa5ee8d7f2192b19e91f433

I tried fixing it (there is a post that explains how to do it in this forum), and it didn't help at all. So I removed it, and it's like my PC came to life. I could play Outriders for the first time without crashes and hours of loading screens, downloads were finishing. So now I don't have an antivirus at all. Is there any chance to go back to Avast ?
Thanks in advance.

Hi,

Please consider submitting a performance recording.
https://support.avast.com/article/Antivirus-Performance-recording-FAQ/

[rotemfrm]

Please attach your screenshot(s), some of us don't follow external links.

I attached it. Thanks

[Asyn]

- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
- Which AV(s) did you use before Avast..?