Out of curiosity are you using the text/app scaling feature of windows 10? The reason I ask is because everything looks overly large in your screenshot. Check out the screenshot I took on my native 1920x1080 monitor with scaling set to default 100%.
P.S: you can drag the window around by left click holding & dragging on the black title bar of the window - it doesn't seem to allow resizing of the window though for some reason.