Numbers from different users are too similar for it to be coincidence, ~1,5 mb/s if borked and ~25 at"full speed" + on VPN my speed sat at around 10mb/s.
Im from Central Europe(Poland) too, so its probably not their server, at least not speed-wise.
You can check that TCP auto-tunning I linked above, should be enabled by default tho - but it was off in my case.