Navitas controller

[MUDSLINGER250]

I understand the ezgo rxv ac motor is no comparison to the torque of a a dc motor as far as climbing over logs up hills and the cart being loaded with seed sacks and fat folks. I have the new batteries I've changed all my cables to 2 Awg because I'm an electrician and get free wire I knew it wouldn't make a performance change on the cart but why not make bigger cables if you can. Now I've seen this 600 amp navitas controller for these carts and just want to know would it make a difference in power on this cart or is this rxv motor basically giving all it can with what it's got. Thanks everyone for your answers on prior posts also.