Which motor for TCS XL flux standaard or 1520 or 1717

[Soro]

Hello people

I have a TCS XL Flux with large HPI Goliath tires and run it with 4 cell lipo's
I run the stock 2200 KV motor in it.

Can somebody explain why the CC 1520-1600KV 1 Turn or CC 1717-1580KV are beter motors than the standaard 2200 KV ( they both have less KV ?? ).

A friend of my is saying that the stock 2200 KV is better than the 1520 or 1717

Please help me out

Thanks for the input