Facetime choppy on fast wifi.
Working with iPhone 12s running 15.2.1 Using a TP-Link AC1750 with download routinely in the 85 mbps to 120 mbps range. Upload between 9 mbps and 11 mbps. Ping around 11 ms.
It's been choppy for years and usually we turn off wifi on the phones to just use data. Any guesses why? Is it the upload speed? Nothing we can do about that since it's throttled by ISP. Any other suggestions?
iPhone 12