A very hearty welcome to the forum. Glad that you joined our fun hobby.
What are you using for a front and rear rest? I’ve been shooting BR for a bit over 3 years now and have been down the rest rabbit hole buying and selling lots of rests. I’ve settled on using a bi-pod in the front and a squeeze bag or Holeshot mechanical rest in the rear.
Find the pellet that your rifle likes best. You may have better accuracy shooting from a single shot tray than from a magazine? But not necessarily so it’s a trial and error thang.
A fancy Boyd’s stock may be fine for some but it may not be the best use of your money right now.
A chronograph is a VERY handy tool to tune your rifle for optimum performance and may be a better investment than the Boyd’s stock.
Experiment with different hold pressures. Does your rifle like free recoil, light pressure, firm pressure or white knuckle grip it to death pressure?
Keep a range log and copious notes. When you find something that improves accuracy or maybe doesn’t work, write it down. We aren’t getting any younger and I have difficulty remembering what I had for breakfast so my range log is a very valuable tool for me. Now if I could only remember where I put it
You don’t need a regulator in your rifle (IF) you know where the “sweet spot” is in the shot string pressure curve. Once you have plotted the shot string and found the sweet spot it’s just a matter of filling your gun to that upper pressure and shooting down to the lowest pressure in your sweet spot.
I would think your rifle is competitive once you get to know its intricacies
There are lots of high end rifles that might be competitive but there are also some very low cost rifles that do quite well. I have a $300 Avenger that is my 2nd most accurate rifle I own and I have been through more high end rifles than I care to admit.
If your still looking for an optic upgrade I’d also suggest a Mueller 8-32 target dot scope which can be had for $250 ish.