Is there an extreme skill difference depending on what time you play?

[Undead]

could you explain this better?
I am interested: whenever I play vs Brasilians, even on servers where our ping is comparable, I find extremely hard to frag them. I never rly understood how it works.
This ofc is not related or allusive to cheat.

the game is less enjoyable at high ping. you get clean kills less often, and sometimes bullets drop, so the games tend to be more equalized but more frustrating. its still equal for both players, but you might not be used to it, so you end up playing worse than them.