PvP is simply garbage

[Petite]

FF pvp feels like a phone game. Characters just iceskate sliding around

I concur that it is really stiff. The game's slow as snails tickrate brings a ton of caveats like the movement weirdness, imprecise position-based AOE snapshots and abilities getting interrupted immediately after their animations have started.

Unfortunately, you don't need fast servers for PVE content as much as you do for PVP. So these issues will likely remain forever.