I'm not familiar with the Evo .46 but have years of experience with a Thunder Tiger .46 Pro powered LT-40.

First of all, in the sizes we run for our model engines, a 3 blade prop is just not as efficient as a 2 blade prop. This is specially evident in the small ½A engines (remember those Cox plastic RTFs)?

Second of all, the LT-40 is a relatively high drag 900 sq in airplane with a low wing loading. It simply won't fly as fast as an airplane with less drag and/or a higher wing loading.

I've flown my LT-40 with an 11-5 2 blade APC or Master Airscrew prop which gives me a ton of thrust but not top end speed. I can put the LT-40 virtually at a stall attitude then open the throttle and it will power out of any "iffy" situation. APC props are more efficient than the Master Airscrew but are more brittle. If you use the stock LG like I did for a few years a minor prop strike on the runway will likely damage the APC prop but the MA prop would survive.