Some questions about APU2C4 and QCA9880

Hi! A have a some questions about using and configuring LEDE

  1. I want to watch multicast through wifi. I use this manual and get IPTV from ethernet connection but not from wifi - what should I do (I don't want use udpxy)?

Reboot (SNAPSHOT, r3747-2f09a1e)
Linux TOR 4.9.14 #0 SMP Mon Mar 13 12:40:57 2017 x86_64 GNU/Linux
config interface 'lan'
option type 'bridge'
option ifname 'eth1 eth2'
option proto 'static'
option igmp_snooping 1
option ipaddr ''
option netmask ''
option ip6assign '60'
root@TOR:/# cat /sys/devices/virtual/net/br-lan/bridge/multicast_snooping
2. On 2.4GHz (on second QCA9880 adapter) My laptop connected at 65Mbps (I choose 40MHz but it work with 20) instead of 150Mbps why that happens?