Thank you, for the help everybody who replied, Our founder/ rhythm guitarist is going to fire him if he doesn't improve so that will leave us without a bassist, well, not really because, I'm going to start playing bass too.
I figure I'll move from lead guitar and lead vocals to bass and lead vocals and our rythm guitarist can move to lead.
I sadly cannot do anything to get rid of our bass player as I didn't start this band we've only been around for two months and I joined a month ago, The rhythm guitarist started the band so, It would need to be his decision to get rid of our bassist, but I think our bassist will be gone by next month if he isn't fired he will likely quit.