You're going to have to pay a lot more. The model can't be sustained at this price. Once the driver pays for gas and (over time) wear and tear on the car, even with healthy tips this ends up being sub-minimum wage. We got used to that price when VC money was subsidizing it and gas was half the price it is now.
Yeah you can read someone's personal account on how they are able to clear $20 an hour regularly doing delivery, but they have to employ all kinds of strategies to do so, including taking multiple orders at once, purposely ignoring orders that are unlikely to have significant tips, and completely ignoring entire sections of the city that aren't "hotspots" with tons of restaurants cranking through orders. Not to mention they are still probably undercounting the cost of wear on their car, and most people touting their delivery driver profitability are probably exaggerating.