: In Windows Graphics Settings , browse for speed2.exe and set its preference to "High performance" to ensure it uses your dedicated GPU rather than integrated graphics.
: For Nvidia users, you can fix anti-aliasing lag by using the Nvidia Profile Inspector to set the Antialiasing compatibility 0x004412C1 and overriding application settings. High Performance Mode need for speed underground 2 lag fix
If the fixes above do not work and you have an Nvidia card, the game might be using the wrong "Profile." NFSU2 was made before modern GPU architectures. : In Windows Graphics Settings , browse for speed2
Here are some solutions to fix lag issues in Need for Speed Underground 2: : In Windows Graphics Settings