KVM: Have to change Scaling to 100% on second computer to see the whole screen

Hi, primary is a 3440x1440 on 100% scaling. Secondary is a laptop 1920x1080 on 150% scaling. When I connect to KVM mode I only get ~75% of the secondary screen (starting on top left). If I change my laptop to 100% scaling I get the full screen in KVM mode. 

Any way to fix this without always messing with the laptop scaling when using multiplicity?

Edit: Also the mouse in the KVM window is off - like it's following the 150% scaling but doesn't match the video.