I know what you mean man, but so far I haven't been able to find a good solution to the problem.
Jad always lags for me during movement, and whenever I switch prayers a few seconds in advance, there appears to be a "delay" in the prayer being activated, and the game registering the effect of the prayer and making it active. Whenever I watch videos on YT, it seems guys are able to flip on a prayer and its activated almost instantly.
Its weird for me because I don't usually experience a ton of lag in the game anymore, but Jad seems to be one spot where the lag is consistent. Maybe I just suck