Tuning FX IMPACT M3 TUNING

Hi Guys 

Happy new year!!!

i want ask about my impact M3 700mm .22 

i shoot & make groups with slugs 30grain about 1033 fps 

include slug power kit / slug dual transfer port use

& set :1 reg about 170bar 2 reg 145bar macro 9-10 micro 4.0 & valve 3&half

when i place the Macro from 9 to 16 not have a different at power/speed

the speed is some about 1031 to 1035 fps 

is it ok that , tell me your opinions

sorry for my english , if not clear the wording!!!