Use Dolphin (for the GameCube version) or PCSX2 (for the PS2 version). These emulators allow you to up-scale the graphics to 1080p or even 4K.
If you are determined to find the original PC install files, look for reputable "Abandonware" archive sites. You will likely need a "No-CD" patch or a wrapper like dgVoodoo2 to make the old graphics drivers compatible with your current hardware. shrek-superslam-free-download-pc-game-full-version
You can still find original PC discs on sites like eBay, though you'll still need the technical fixes mentioned above to get them running. 2. What Makes Shrek SuperSlam Special? Use Dolphin (for the GameCube version) or PCSX2