Hi there, @LimeyHoya! Audio quality concerns are often related to power and/ or network connection. As long as your battery is charged and wifi signal is sufficient, this should work as intended. Check out your RSSI in the device health section of the Ring app, to ensure for optimal wifi signal.
A great test is to bring your Video Doorbell inside near the router to see if audio improves I recommend connecting your Video Doorbell to the 2.4 Ghz network, rather than 5 Ghz, for best results over distance. Please also ensure there is not a VPN enabled on your mobile device. I hope this helps! 