Need enable developer mode. To enable the mode, add the line dev = 1 (in the [user] section) to data/chr.ini.
This will change the screen resolution. If there is a problem with show images, you can try to enable the "async" mode.
Good idea, but I can't access a .ini file. Mac's don't have those kind of files. At the moment, the game will run but I have no way of saving progress, seeing the UI properly and it seems that video's that play still have sound for now but the visuals are very distorted. Is there a menu in the game to find this async that you mentioned?