So, I've been trying to speedrun a bit lately but my laptop isn't built that well which led to a lot of lags, even with optifine. A 20min recording for example can be 15mins ingame.(got ~40fps on average) Could I somehow "counter" the amount of lag/prove it's legit by using a Hand&Keyboard cam in a recording or would any run with this amount of lag be rejected? Are there any other ways of improving performance(apart from optifine)?