Ok so in 1.13.x and up, every time I cross the chunk border i get a lag spike and its really annoying. It doesnt happend in 1.12.x or under. it isn`t just me some aouther people who have the problem even some of my friends. hopely mojang fixes the preformence of the newest versions of minecraft cus its almost unplayebel. if you have a fix for this please tell me.
(sorry for my spelling)
btw if you wanna se chuck borders click F3 and G.
here are some fotages: