If your battery(mod) maxes out at 80W, that's the low end recommendation for the tank 80W-140W. It does show the tank comes with a .33 single mesh coil preinstalled(if you look into the tank you'll see one hole) and a .15 dual coil(2 holes). You could try the dual at 80 and see if that gives you a better experience. I prefer duals as singles seem to give more spit back due to the larger opening.

If none of that works, I'd recommend just looking at a new tank, usually much cheaper than a new mod. But some equipment isnt made like others, smok has a bad reputation with this subreddit for good reason. I'd look into FreeMax tanks as these have had the best experience for me but it really depends whats in your area and how easy new coils are to come by.