Nice, this weapon is pretty underused (I think I'm probably the only one on this cite who uses it regularly)
But this weapon is very gear dependent. As there's a lot to juggle. There's your ink management, swim speed / mobility / bubble size / quick respawn.
But some abilities you should focus on are swim speed, special power up, and the ink savers.
It's pretty hard to gear build for this weapon, as it needs a lot to function. It needs some special power up for big bubbles, swim speed for better 1v1s, main saver for extra shots, and ink recovery / sub saver so your curling bombs aren't eating your whole tank.
So, I'll just put my gear build here
So, for starters, I have comeback with some swim speed. Swim Speed is for winning more gunfights and strafing just a bit easier. Comeback is useful since it gives me swim speed, ink recovery, main and sub saver, and special charge upon respawning. Which is useful since I don't have many slots to work with.
Special power up is for big bubbles, nothing else. The 1 main and 2 subs of main saver give me 11 shots instead of the usual 9 shots. And the rest I put to ink recovery.
Do you have to use this set? No. My set isn't perfect, but I like this set since it compliments my playstyle with the weapon. So, try experimenting and see what you like.
I hope this helped.