[gameplay] Everything slows down and speeds up while also some abilities are invisible consistently

my ping is around 80, my frames are always above 60fps, tried to ping the server on cmd and there were 0% packet losses I 've tried repairing my client, playing on a different server but the issue continues

Everything will slow down and speed up in a consistent rhythm and certain skill shot abilities will be invisible consistently

for example Jinx ult always being invisible, Xayah's Q always invisible while at the same time stuff like morgana's Q always was visible