adding other AS to system

hi my friends

we have a server/client PCS 7 system with five AS(414-3XM05) and 2 servers(redundant) with eight clients,I have a question:

if i add another AS (with 150 I/O) to this system , will the plant bus network slow down significantly?

and

Don't the Server/Client Network slow down by adding these tags?

have we a standard for network speed in pcs 7?

Dear a.z.r

I think attached file will help you, because it's depending on more things

Regards,