when should you actually bother switching from a monolith to microservices

im workin on a medium sized app that's a monolith rite now. we r startin to feel the pain with deployment speed and scaling certain parts. we're thinkin about movin to microservices, but im worried about the extra complexity if were not really ready. what are the main signs you look for before splitin up a monolith? are there specific team sizes, code complexities, or business needs that say its time, or does it really just depend on the situation