I've tried the s9+. It's not as fast or fluid as my OP5 let alone 6. And fun fact the screen on my 5 is brighter in manual mode than the manual mode on the S9. This is much more useful to me as I can set max mode when I want not when the software deems it so. That's kinda the theme with Samsung.I have the OnePlus 5T get ridiculously good wireless speeds and super fast UI. Having had 5 Samsung devices in the past I do find it hard to believe the 9+ is faster than the OnePlus 6. I'd bet it not being as fast as my 5T.