I'm confused, what is happening? You shouldn't be able to type into the Godot editor, which means you are likely looking at the console that opens when you make a Godot project. Is there another process/window on the bottom bar? The Godot editor should be separate from the console that Godot opens.
Reading it again, is the issue performance? Like everything is delayed when inputting text? In that case, I'm not sure what would be causing the issue right off. Have you updated Windows and your drivers? Have you checked taskmanager to see if something is taking system resources?