Apex legends servers and game are destroyed by hackers

Some servers it slows down character movement with like 25 % and aim are faster than usual. I play with 600 CPI and some server it boosted up to 800 CPI, so I have turn it down to 400 CPI on mouse.
Seen also hackers hacked the HP, so when they standing on a granade they only loses 25 HP instead of 120 HP.