Refresh Rate Stuck At 30Hz

I have 2 Dell U2723QE monitors hooked up to my 2019 16-inch Macbook Pro.

My refresh rate is stuck at 30 Hz and my screen and my mouse are choppy and laggy.

When I adjust the display settings to the largest text possible, then the refresh rate option of 59.88Hz pops up. Selecting that makes me screen and mouse feel normal.

But then the screen is bigger? I'd prefer the default.

Is there a way to still use the default setting or does my computer not support that?

Sorry if this is a dumb question, I'm not the best with this stuff.

Mac Specs:

2.6 GHz 6-core Intel Core i7

AMD Radeon Pro 5300M 4GB

Intel UHD Graphics 630 1536MB