Split applicationHost.config location node per site

Hi,

My applicationHost.config file too large (50MB) because working 800 web site on IIS.

I creat web site by IIS API (Microsoft.Web.Administration.dll). When I was created website, API working too slow. But applicationHost.config size is 1 or 5MB Works fine.

To resolve this situation I want sperate <location> node diffrent config file. is it possible IIS 7.5 or 8.0? or I resolve this case any way? In

My Another opinion is change website web.config file location get out of the home path. is it possible?

for example:

<configuration>
<location path="C:\Configs\domain.config"/>
</configuration>