Help with TBT / What does many longest task with same url mean?

Why I’m getting way too many of this

And how to debug this?
I ve tried so many optimizations in regards to improving the site speed with Cloudflare yet I’m getting this loading issues, TBT is out of place here.
Report without Cloudflare cache:
and with(in mobile)
I d really appreciate some guidance here

Update: maybe is malware?