This AddOn let you choose how many Lightning Shield charges before fulmination spell overlay animation popup. It also hide spell animation when player have earth shock on cooldown and show it again when its off cooldown.
forgot to mention , but you probbably need to disable "show spell alert's".
you will find this option in Interface/Combat as a checkbox. but should be no problem disable this since its only fulmination it show's anyway.
if any ideas to improve it im happy to get feedback.