the titans keep freezing the game

as the title explains... the titans are freaking messing up the game and idk how to make them optimized enough to not..
spawn the spider titan in with a omegafish (just do /function summon:)
then use damage @e[tag=spider_titan,limit=1] 0 minecraft:mob_attack by @e[tag=omegafish,limit=1]
idk if its my computer or not but it freezes