How to disable Strongnamesignatureverification for .net dll?

Hi,

I have MVC .Net dll deployed on IIS, and when application is in use i can w3wp.exe consuming more CPU.

and if i see the threads which are consuming cpu usage i see lot of  signature verification running and consuming more cpu than my actual functionality threads.

clr.dll!StrongNameSignatureVerification

I tried different solutions to sign my dll using sn.exe and disabling signature verification via registry entry as well as sn.exe.

but no luck, Is there any solution to this problem because it is making application non scalable due to high CPU usage. 

Regards

Roshan