Iphone 10 vs Iphone 8 testing the internet speed at a client site, speedtest

 starlink x internet

unifi U6-LR

interesting thing is that on my iPhone 8 is speed is 25/6 mbps

however, on my customer's iPhone 10 the speed is 48 / 7 mbps

also on customer's smart TV , the speed test is 49 / 21 mbps

looks like the client side matters for internet speedtest