There is a new feature on the client which allows you to uncap the FPS (Frame Per Second) and it is disabled by default.
In order to uncap it, I invite you to follow these steps:
1 - Go to your "Dragonball Online Global" folder > "User" folder >
2 - Open "SystemEnv"
3 - Find LIMIT_FPS = true; and change it to LIMIT_FPS = false;
4 - Save the changes.
Open the game and you will notice an increase of your FPS, in my case I have 65 - 75 FPS when it's capped and 120 - 150 when it's uncapped.