When is C# fast and slow?

Hi myyulie 
 
yes, c# is fast when u write good code, for example  you are using loops instead of lengthly code then your program fast or you are use views or store procedures that time also your program work fast.

These are some features of C#, so please read the features/advantages of C#

http://en.wikipedia.org/wiki/C_Sharp_(programming_language)

:) 

Is there something in particular you need to know about? Is there a specific project that you are designing or something like that?

C# and .Net are designed to provide the best possible balance of convenience, function and performance.

When you write good code, C# is fast. If you write bad code, C# is slow.