I have a 4k monitor and my scaling is set at 125%, which works fine for the applications I use, including various Adobe programs (mainly Photoshop and After Effects). Magix Vegas Pro, Audacity, Microsoft Office, etc.
If text is too small for the UI, you can change the Compatibility settings.
Right-click the desktop icon for the program and select Properties. Click the Compatibility tab, and the click Change high DPI settings.
In the dialog that opens, check 'Override high DPI scaling behavior..." and select System (Enhanced) from the dropdown menu. Click OK and OK again.
BTW, does your laptop support a 4k monitor?
Edited
Last Year by
animagic