Projectiles have a delay before firing

Projectiles that are thrown with a right click have a delay, seemingly about 100ms, before being thrown after the user right clicks. Is anyone aware of a fix for this? This happens on servers and in singleplayer worlds. This is causing the game to be unresponsive. This at right click, on a controller input, and after the touchscreen "recognizes" your intent to fire the projectile, so input type is not important.