Props are a trade off of many points. The larger the air mass a prop can throw back the better, with the smallest of added velocity, this means large diameter low rpm as per first war1 fighters. So in theory a smaller diameter 3 blade can not perform better than a larger 2 blade it replaces. A 3 blade also seems to have higher drag per speed curve so may be better on slower cruising aircraft.
My experience is with 200hp Cessna Cardinal F177RGs put a Hartzell 3 blade on one and everything is bad. Take off, climb, cruise and max speed.
The only improvement is lower noise and better ground clearance. Take the same prop put it on an Arrow 200hp same engine and it performs better.
So the only way to find out is try it, but don't expect to much and as said if a reduction in performance will they put the 2 blade back on then, you have nothing to worry about.