Chipped Ecu..good Or Bad??!

Im running a p72 in my 4g4d, and vtec doesnt seem to hit as hard as it did when i had a jdm b16 ecu in my hatch. So im thinking, if i chip the ecu it will will feel like the b16 ecu did. what do you guys think i should do, or any suggestions on any other ecu's that would be good for my b18c?? My car is rewired to obd1 just so you know!!