[uoaei]

Plex shows you both critic and audience scores from RT (IMDB also) and they indeed diverge consistently on the lines you suggest. In general I trust the audience scores a lot more because I'm trying to have fun watching movies rather than analyze their plot/pacing/cinematography/etc.

The audience can be trusted to know how to have fun. The discrepancy between critic and audience scores is also a valuable signal to judge how fun campy/schlocky/B-movie horror films particularly from the 80s and 90s.