So, first of all – I got everything up and running – Controller working in emulators aswell as the Retropie menu.
BUT! – When i start up ROMs such as Super Mario World and Super Mario AllStars.
There is lag – Like the controller suddenly stops working Then it works again after 30 secs. or so.
Also, the ROMs running seem to be a little slow to respond to the controller input (Maybe, 0,2 millisecs).