Hi @joelk18 ,
You can take a look at this application note. It will help you to understand how different uwb configuration may affect the range.
Maximizing Range in DW1000-Based Systems (Application Note APS017)
The easiest thing to do is to increase the transmit power. But you may exceed the FCC regulation (< -41.3 dBm / MHz)
If you change uwb configuration, you may also need to change the timings in the TWR when your frames become longer in duration.