I don't really mind playing maps like that because i run each of them at least once a day. I just like to play that way. If i feel that i have become good enough for some 4 star maps then i just try to FC them to get some PP but my main playground is 5 star section atm. I understand that accuracy is directly proportionate to reading ability in the essence that if you can read a map easily then you have enough time to focus on the song itself to get 300's. IMO playing 3.5/4.0 star maps in my eyes i just nothing more than PP farming.
EDIT: I remember when i first started out with NF Insanes i started keeping an average Accuracy i would get on the majority of maps i played which has progressed from 15% to 35% to 50% to about 60-70% now. Even though i am playing maps that are VERY out of my league i have learned to: Read more complex jumps, react faster to higher AR, stream faster and more accurately, START TO STOP BRAKING SLIDER MIDWAY (i still have this problem tbh and it kills me every time), make my general reading ability better. These maps have also pushed me to start single tapping instead of alternating (Because i had a bad habit of mashing with alternation, although that helped me with faster stream speeds)
EDIT: I remember when i first started out with NF Insanes i started keeping an average Accuracy i would get on the majority of maps i played which has progressed from 15% to 35% to 50% to about 60-70% now. Even though i am playing maps that are VERY out of my league i have learned to: Read more complex jumps, react faster to higher AR, stream faster and more accurately, START TO STOP BRAKING SLIDER MIDWAY (i still have this problem tbh and it kills me every time), make my general reading ability better. These maps have also pushed me to start single tapping instead of alternating (Because i had a bad habit of mashing with alternation, although that helped me with faster stream speeds)