Top hat question. Will adjusting this help anything?

Below is from a previous post I made with my curve for reference. Now on to what I want to ask help with.

Using the below shots, I am shooting my .22 cal SS w/12″ barrel and Kodiak heavies with the power wheel set on 10. I just bought a set of feeler guages and checked the top hat setting which is at 0.082

I am wandering if someone can tell me if adjusting the top hat any will allow me to dial the power wheel down to say the 4 or 5 range and still give me the rough 750 fps velocity but hopefully quieten the gun down some?

Right now with all settings where they are, if I power wheel down to 4-5 range, the sound is greatly quieter, but my fps falls to the 500’ish range.

1. 760.8……….11. 771.6……….21. 748.3……….31. 751.1
2. 766.5……….12. 769.4……….22. 759.0……….32. 750.7
3. 784.5……….13. 760.6……….23. 752.6……….33. 748.2
4. 777.5……….14. 753.4……….24. 755.9……….34. 744.7
5. 783.2……….15. 751.0……….25. err-2………..35. 738.2
6. 775.8……….16. 750.4……….26. 754.8……….36. 737.3
7. 774.9……….17. 757.7……….27. 755.6……….37. 736.5
8. 770.2……….18. 769.8……….28. 755.0……….38. 735.3
9. 777.2……….19. 766.4……….29. 753.4……….39. 734.9
10.771.2………20. err-2 ……….30. 745.6……….40. 734.1