Match service pistol must pick up 4 pounds. I think if you get 4 pounds and it will seem like night and day.
You can buy drop in CNC parts, or do things like polishing trigger bow, split the hammer spring, and cut a coil or 2 from the main spring. Anyway there are instructions for a do it yourself guy, and you can always drop it off at a gunsmith. Well worth what ever path you take.