[cassalian]

I imagine that must be pretty frustrating considering that I get annoyed if someone doesn't check out my PR within a day...

IMO the best thing to do is exactly what you're suggesting: continue to lead by example, raise this as a concern (maybe frame it as lost productivity or something else a 'higher up' wants to optimize), and possibly consider other places to work (but know that the grass isn't necessarily greenr on the other side).