I am in the process of optimizing to improve the performance of the lens.

My design skills are very poor.

My goal is to reduce the RMS radius of 1-10 fields of the lens to near the Airy Radius. And I want to make a lens with MTF (223 lp/mm) 1field:0.7 and 10.0 field:0.4 or better. But there is no further performance improvement.

I am currently using the operands of EFFL, TOTR, RAID, RELI, and DIMX. Should I use more operands?

What can I do to improve the performance of the lens? Or is the initial design of the lens wrong?

I will attach my zemax file.