Blackjack true count conversion: is this actually worth calculating mentally

Trying to wrap my head around if the hassle of converting running count to true count in blackjack is really giving me an edge, or if it's more one of those things that sounds smart but doesn't do a whole lot for most people at the tables. I get how true count is more accurate when there are uneven decks left, but honestly I see a lot of folks just using running count or skipping the math entirely when it gets busy or noisy. I can do the division in my head but not without slowing down my betting decisions sometimes, and that's probably costing me in other ways.

For people actually playing live games, does the precision from true count matter much in the long run, or is it more important to keep the betting flow smooth and just stick to simple running count most of the time? Curious to know if there's a real winrate difference or if the casino atmosphere kind of cancels it out for non-robots.