i have this problem too as soon as i changed my mouse i realized that my normal mouse speed doesn’t match with the drag speed in the node editor, graph editor, content browser, etc
i also believe that its because ue4 doesn’t use raw input on the mouse
a simple solution would be them adding a ui.SensitivityMultiplier (x) in the ue4 console. how hard is that and im also positive that many people have this problem but they don’t write a report about it because not every one has a huge difference between the normal and pan sensitivity because we have different mouses