HUGE tps drop issue withthe effect mine_radius

[iSeitan]

we created a custom hoe (radius 7x7) and custom pickaxe (radius 3x3) able to mine either stone or crops and everytime ONE player use it the tps drop to under 10 tps

Our spark and timings:
https://spark.lucko.me/7gVNaGs9gX
https://timings.aikar.co/?id=6999c8981cca49f59b12053f543899b6

Blockbreak event seems to be the one

heres a video to showcase the drop
https://www.youtube.com/watch?v=z0EjNb_FZuE&feature=youtu.be

I really like this effect and would like to keep it, coud you please optimise it as best as you can so we cant really see that kind of tps drop?