I have been having spell lag on Behemoth and I mean severe spell lag.

As a BLM I can cast Fire 3 and Blizzard 3 (both have a 1.73s cast time depending on Astral or Umbral stacks)

Now the spell will go off before the 1.73s and it acts like an instant cast, then if I try casting blizzard 1 or fire 1 the spell will have a 1s to .6 s casting time left and it will go off.