Ive gone through this many times before.
What I do is re record the bass to the metronome. make sure the bassline is lined up on the grid. this gives quantize a better chance at making smarter shifts.
Someone might know a way, like using a CAL Script. Im more of a redo person.
Use a scratch track of kick and snare only. this will emphasize the metronomes down+up beats.
I often find a click track is not enough to keep me in time. I need a solid beat, like kick on 1, snare on 2, kick on 3, snare on 4.
loop that and drag it out. re record the bass line.