Slow 5G modem speed

Dear All

I am using the latest snapshot and I am Getting max speed of 400mbps meanwhile on my Phone I got over 600mbps and I make sure that I use the same Cell id and same bands and Ca and I can’t get near speed of my phone also I try to move the 5g module to different CN but it’s same problem

My 5G modem is : FM190-Gl My board : Banana Pi 4 Pro 8X

Thank you