Server keeps kicking me out of Frontline for using "Overwhelm" skill

not sure if it's the game's anti-cheating system or whatever. there's a small chance that the server will kick me out of Frontline matches whenever I use this "Overwhelm" skill (the Ninja skill that let you move toward the target immediately). probably because the player will move very fast with this skill and the anti-cheating system thinks that the player is cheating.

It's so annoying, how can using an in-game skill can be considered cheating anyway?

not only that but even by riding on a mount in Frontline, the system may kick you out whenever it thinks that you're moving too fast. this is sick.