Is it just me or rust-analyzer is unreliable/slow?

In my projects with zero dependencies, RA is very good, fast and works very well. I'm trying to do a small web project with rocket, sea\_orm and the autocompletion is completely unreliable, sometimes I have to retype a whole line until I'm getting a autocompletion, sometimes no matter what I do I'm unable to get anyway at all (only the text suggestions of VSCode). I really appreciate the work done on RA, but I don't see any discussions about this. As soon as you have a couple of big dependencies, it just doesn't work well at all.

EDIT: I retried RLS and I must say that all the places where it couldn't give me suggestions or I had to retype 2 or 3 times before I get something are no longer there. I do miss the type hints and the autocompletions for match and impls. Is it that bad, why were people switching off of it?