Questions about BR500 Router and GC110 Switch

Hi ,

I would be happy for some assitance with that issue :

Router BR500 :

1) 
how much group of different IP Range can TRANSLATE for NAT-PAT ?

Becuase I have Create 4 Lans in Router and each LAN set to Different vlan , but when I create the fifth VLAN on the router and connect Switch GC110 to it with PC ,
I can't go to internet because it not translate the new private IP for the fifth VLAN , why is that ?

GC110 Switch Questions:
1) IP ACL will reduce the speed of the packets when streaming
content from web or IPTV ?

2) IP ACL is used by hardware on GC110 or Software ?

3) what the best configuration for streaming vlan on GC110 Switch ?
( How to use IGMP for improve streaming content , because now it is on Default settings )

Thanks