In the Performance Model Y (PMY) the driving modes are Performance and Chill. In the Long Range Model Y (LRMY) the driving modes are Standard and Chill (if you purchase the acceleration boost option that is available for the LRMY the driving modes become Performance and Chill.)
The consumption (309 Wh/mi) since the last time you charged your PMY is fine considering that this is a Performance Model Y with the 21" wheels. The AC has a measurable impact on the energy used. The AC energy usage could be reduced if you have the windows tinted.
The Energy screen can display information about the energy used. The instant consumption (energy used) is a snapshot of the energy used at that exact moment, will swing widely as you accelerate and slow down. The Energy screen can provide more useful information if you display the average energy used over the last 15 miles or last 30 miles. When you enter a destination into the Navigation system and start driving the route the Energy screen will display your energy usage over the route and any deviation from the expected usage given the posted speed limits and the elevation changes along the route.
The first photo you posted shows the energy used since the last time your Model Y was charged. If you swipe up you can see the usage data for Trip A and if you swipe up again for Trip B. You can rename Trip B to be Lifetime Usage, don't reset it so it will show you the overall Wh/mi efficiency for your Model Y. (The lifetime Wh/mi for my LRMY with 19" wheels is 268 Wh/mi. Your efficiency since last charge (309 Wh/mi) is ~15% higher.)
The Wh/mi measure is new to first time EV owners. It can be hard to relate Wh/mi to something familiar. If you invert the Wh/mi as 1/Wh/mi value you get the miles per kWh. I.e. 250 Wh/mi is equal to 4 miles of range per kWh. 250 Wh/mi is good driving efficiency, some Model Y owners can do better and achieve ~240 Wh/mi or even higher efficiency (a lower Wh/mi value). (If you turn off the climate control system you can achieve even better efficiency.) If you can achieve overall ~270 Wh/mi efficiency that is typical of the experience of many Model Y owners. With the 21" wheels you can expect higher consumption than with the smaller 20" and 19" wheels.
Range loss with the different wheel options