Unable to set advertised resolution for displays

[Andreasp_]

Hi,
I have two displays that should be able to run 2560x1440. For some reason only one of them at a time can display this resolution. When I connect both I get a notification saying that resolution is adjusted for better performance or something.

Is it possible to force display link to use 2560x1440 on both displays? Currently I am using only one, since it is better for me to work with x1440 on one screen than x1152 on two (don't ask me why, just personal preference I guess)

My equipment is
- Two screens with max resolution 2560x1440
one connected with HDMI, one with DisplayPort
- HP X7W54AA#ABB (HP Elite USB-C Docking Station G2)
- MacBook Pro late 2016 with Sierra and DisplayLink 3.0 for Mac

Thank you for your help!

BR
Andreas