SDL_PollEvent causing frame dips

Hi! Wanted to ask here before creating an github issue.

Im using the version SDL2-devel-2.0.14-VC and Im seeing slowdowns whem my SDL_PollEvent is called. With or without fps limiter. Fps dips very low every couple seconds.

When I comment out the line my fps stay constant.

Anyone have an idea why this could be happening?

I dont think its performace related because when I remove the PollEvent call I can get up to 2500fps without slowdown.

Far fetch but is it maybe related to the troubles amd is having with their usb on X570-/B550 mainboards.