You could check a "mesh" system; the base station connects to your existing wifi router and connects by wifi to a remote station which gives access to wifi devices.
You can search on "mesh" in Community.
Welcome to the Community!
Mesh network is one of your options to extend your internet connection.
You may also look into a wired access point. This eliminates the possible WiFi signal interference that may cause issues with your internet connection at the studio/study room.