Random FPS drops since 8.6

I rarely have problems with FPS but in this patch every game there happens to be a period where for ~30 seconds my fps is around 20-30 and it's very unplayable. Wondering if anyone else has the same problem since new patch. Thank you for your attention Happy Easter!{{sticker:vlad-salute}} EDIT: I thought this is because of Voice Chat but didn't want to bring it yet, but now I see that other people are posting on boards about lag spikes because of voice chat so that might just be the problem of the lag.
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