The System Diagnostic feature of the Playstation 2 will automatically configure your PS2 to be able to play DVDs on your TV.
The Playstation 2 can play original Playstation games too. You can experiment on texture smoothing to enhance the graphics by using the texture mapping option. But some games will slow down when textures are smoothened. The other option, disc speed, will change the CD read speed. You can actually increase the speed in reading PS games, therefore minimizing load times as you experienced in the PS console. The catch is that some games won’t work if the Speed is increased. Choose Standard for both if you want to play the game normally.