RT-AC68U Shibby Tomato VLAN Issue - Slow LAN speed

I have setup a second VLAN (br1) using 10.10.10.0/24. I have tried setting this VLAN on multiple ports thinking that maybe one of my ports was bad. Communication on the VLAN seems to be fine, but the problem is speed and I can't figure out why, unless this is just a limitation of the VLAN feature on this fimware (running latest 140 AIO). LAN speed (file transfers/SMB/CIFS etc.) is very slow averaging between 20-40MB/sec. If I move the same device onto primary VLAN 192.168.0.0/24 (br0) ,...

RT-AC68U Shibby Tomato VLAN Issue - Slow LAN speed