best blackjack site for speed if you just want to grind hands.

Been trying to find a blackjack site where I can just blast through as many hands as possible. Live dealer is too slow for what I want, need to grind out volume and track stats over hundreds of hands. Most sites feel laggy or they add weird animations that just slow everything down. Would prefer something crypto friendly but that's secondary, speed is really the main thing.

Anyone have a go-to site or app for this? Also curious if people actually notice a big difference in RNG or payouts when you play this way vs live dealer, or is it all just in our heads?