how do i get faster mana regen when doing t4 endermen

[chickeen]

i get around 1.4k mana when doing t4 endermen, but usually i end up running out of mana with an overflux placed down and cant use my endstone sword. any help?

(soul whip doesnt regen it fast enough ive already tried it)

https://sky.shiiyu.moe/stats/91milliseconds/coconut/