You asked this "Any accesories that can be added to improve that?" people told you that higher scope mounts would help you and your saying no your not willing to change this setup. So I wonder if your not going to take peoples advice or change anything on your rifle then what do you expect to happen? I don't think there is any magic part that can be added that will help with your current setup, unless your willing to make changes
Personally I shoot cross eye dominant so I have my scope mounted really high, on 1.93" high mount, that allows me to shoot without burying my cheek into the stock like mentioned above. Otherwise with regular height mounts I get the same problem your having
Other then that I prefer stocks with a bigger cheek rest, but with your low scope mounts that would make things even worse IMO.
If you dont want to get rid of your mounts and want to try a higher setup, on some of my rifles I run a rail riser under regular height mounts, you can get some pretty cheap try it and see if you like it, if not just take it off and go back to what you have now