Kucoin can be a good option for you as it has a limit of 2 BTC I think before you need a kyc so if your volume is relatively low go for it.
As far as I know its not 2 BTC but 1 BTC and its withdrawal limit not volume limit. So no matter what your volume is ... you can go for kucoin as long as you accept the fact that you will need few days to withdraw all your money (as long as you trade using millions)
@OP I would avoid dexes like DYDX due to low latency.
Sorry I wasn't sure if it's 1 or 2, but yes Obviously it's withdrawal limit, I just meant that your withdrawals will depend upon your volume only na. Moreover what I have seen is generally people don't feel very safe in keeping more money in an exchange than what the withdrawal limit per day of that exchange is. Because just in case of any catastrophe, no one wants to be stuck for more than a day or two.
Serum and DyDx is the exchange that you are looking for on this kind of nongKYC exchange. Only DEX is offering a non-KYC exchange. Serum and Dydx has decent exchange but don't expect a volume like a CEX since there's still limited amount of trader that using DEX for perpetual trading.
Volume is the only concern with Dexes and it's really the biggest one. It's just bots that are performing trades on these exchange nothing else.