Tangential, but I recently discovered Mullvad. For years, I've used whichever mainstream VPN provider had a good deal on come renewal time, and cycled through a few of the usual suspects. Recently, I was with Surfshark, and was really struggling to get download rates above a few hundred K/sec - and sometimes even worse. I didn't even suspect the VPN at first, but ultimately tried a different provider as a diagnostic step.
I randomly came across a recommendation for Mullvad from reddit, and signed up for a month. Hot damn if my download rate didn't shoot up to 15-20 MB/sec (that's megabytes, not bits) - essentially close to maxxing out my fibre.
Turns out you really do get what you pay for - and I doubt I'll be leaving Mullvad any time soon.
(no affiliation - just a happy and surprised customer!)