By some act of God, I actually got a piece of gear with two run speed up right after I made that comment... Now, I just need to repeat that miracle two more times and grind like I've never grinded before so my inkling is no longer slow as tar.:D
Except the problem is that I'm limited by money; 20,000 is large even with food. I even primarily play Ranked Battle, where I'm S+ in every mode other than Clam Blitz because I frankly just haven't put forth the effort.
The hell? What level are you? I'm level 32 and I only have 5-10 of every chunk. Salmon Run is super tedious to me so rarely play it after having reached Profreshional, but regardless, it doesn't appear to be all that much faster at getting chunks than regular versus modes. There's quite frankly no way to get chunks in this game without grinding for forever, there are just different degrees of forever, lol.
There's not really much reason for me to try and get better though. I hope I don't sound too arrogant, but I believe I'm better than a good majority of even S+ players I've played against, and have thus had no problem ranking up. Getting to S+ in Splatoon 1 has really prepared me for anything this game has thrown at me. Being greater skilled might be useful for Leauge, but I don't play League because I don't have a partner, and even if I did, there's still not really any insentive for doing so.