If this is due to personality and not technical problems (he can play well) then just record him next practices and gigs. Now you no longer need him. Mwa hahahaha 
I sequence stuff and it takes a loooong time and since I’m unwilling to pay big bucks for soft synths the drums sound decent but not realistic.

I sequence stuff and it takes a loooong time and since I’m unwilling to pay big bucks for soft synths the drums sound decent but not realistic.
, you will become very good at altering these MIDI files to better suit what is needed.