Quote Originally Posted by bluelol View Post
Pressing F will usually start with a Earth shock cast and then followed by a lightning bolt. I think the spell queuing might bug it sometimes because Earth Shock might take a while, but it's not non existant so I believe it's working as intended anyway.
All shocks have a ~6second cooldown, so that might be the delay you're seeing. If it's combined with the in-game "Lag Tolerance", that delay can be further exaggerated as the spell queueing keeps dropping down to the spell that's not on cooldown {in this case, Lightning Bolt which has no cooldown and a cast time}. You can try either disabling that in Interface > Game > Combat > Custom Lag Tolerance or adjusting the tolerance up or down. Mine is set at a little less than double my latency.