ASP.NET Improve Performance

You can use the Native Image Generator  tool to improve Performance of your ASP.NET website

Excerpts:

The Native Image Generator (Ngen.exe) is a tool that improves the performance of managed applications. Ngen.exe creates native images, which are files containing compiled processor-specific machine code, and installs them into the native image cache on the local computer. The runtime can use native images from the cache instead using the just-in-time (JIT) compiler to compile the original assembly. 

Click here to read the full article