is there any way I can change the resolution of Android Studio? I looked in Settings->Appearance but it seems like there is no official way to change it. I have a 1920x1080 Display and the whole window and text looks a little bit blurry. I am running a Windows machine on Windows 8.1. Thanks!
You need to set a compatibility option "Disable display scaling on high DPI settings" for the application.
Right-click the taskbar button, then right-click the app name, select Properties, Compatibility. Set the option, save changes, restart Studio.
Those instructions are for a Win7 machine, but Win8.1 should behave the same.
To explain what is happening: apparently, the Studio is not "high DPI aware", i.e. does not declare "I know how to handle myself on a high-DPI screen", and Windows tries to scale the window so that its elements do not get too tiny.
You can override this on an app-by-app basis, but be prepared for possible glitches / tiny UI elements.