I am guessing it uses Java, not tried it so not sure. For Java you might want to try disabling Direct 3D, Java uses the hardware acceleration of the graphics card (like a pc game) to render to the screen.
Alternativy you could just use the FN button on your laptop to mirror to the 2nd monitor...
After a free simulator, will pay for one if need be later down the line. Going to spend the next year researching and getting my mindset right before I do my first trade. Fortunatly I understand the psychological part already, having burned myself by letting emotion take over on "professional...