The game runs best when you use the 'Fixed' frame rate option under 'Graphics Settings' and disable VSync. This also fixes some potential online desynchronization issues. Using the 'Smooth' frame rate option can lead to malfunctioning attacks. The game was designed to be ran at a constant 60fps so anything other than a fixed frame rate can cause issues. If you experience tearing, you can enable VSync either through the game or your graphics driver software, but this adds a minor delay in input, though it's not noticeable to most players.