How does break lag compensation work?

[monturem]

I've been researching this subject a lot, but I can find codes
for hkwriteusercmddeltatobuffer in some forums
but I'm using cl_move, can you give any logic or code?

 

[Yoka484]

I've been researching this subject a lot, but I can find codes
for hkwriteusercmddeltatobuffer in some forums
but I'm using cl_move, can you give any logic or code?

Do you need leg braker for lua/javascript or cheat in general?