Not Getting Delivery Requests From UberEats

Apparently I have to be closer or within demanding areas, and that the heat maps (what they call the restaurant icons and the surrounding aura) aren't entirely reliable. I know being in a suburban area and riding a bike to deliver puts me at a logistical disadvantage, but not having to pay for gas, insurance, nor maintenance allows me to pocket pretty much all my earnings. I've also signed up and successfully was approved to deliver for DoorDash, and they're gonna be sending me a delivery bag (hopefully) in a few business days. I have yet to get mobile data so I can't start delivering until I do, but I won't do that until I acquire an insulator bag. Any tips to improve my chances of getting delivery requests?