One svc file or multiple svc files

Hi,

We have a very large number of operations delivered via WCF on one single service.svc file hosted on IIS.

we using percall instance mode

This service is used by 100+ clients with an avg of 30000 calls a day.

I'm wondering if would be good performance pratice spliting operations by multiple svc files ?

Thanks,

Rui Figueiredo.