Thanks, found it. So there are radio options at 3 different groups of menus (WiFi, AP, and Administration). I set 2.4ghz on max power. Unfortunately it still sucks, massively. And the r320 is on very clean channel 1, ASUS on more congested channel 6.
Some observations (2.4ghz only, single AP):
Max link speed of ASUS 5ft away: 144Mbps ; Ruckus - 130Mbps
But the more I move away from them, the bigger the delta.dBm also drops, Ruckus is trailing 3-9 dBm lower.A hallway and a room away (open door), and Asus link speed is still 100Mbps, while Ruckus drops to 52, 26 and even 19Mbps.
I do remember reading awhile back that RT-AC68 was one of the last routers/wap with the strong radios. Maybe there was a power limit change 10 years ago, I don't know ...
I am not able to upload screenshots yet, so here is a co-paste of some iperf3 results (Ruckus is test# 80 on top):
Server listening on 5201 (test #80)
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Accepted connection from 192.168.9.42, port 61781
[ 5] local 192.168.9.99 port 5201 connected to 192.168.9.42 port 61782
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.01 sec 256 KBytes 2.08 Mbits/sec
[ 5] 1.01-2.01 sec 512 KBytes 4.20 Mbits/sec
[ 5] 2.01-3.02 sec 512 KBytes 4.17 Mbits/sec
[ 5] 3.02-4.01 sec 512 KBytes 4.23 Mbits/sec
[ 5] 4.01-5.01 sec 384 KBytes 3.15 Mbits/sec
[ 5] 5.01-6.01 sec 512 KBytes 4.16 Mbits/sec
[ 5] 6.01-7.01 sec 384 KBytes 3.16 Mbits/sec
[ 5] 7.01-8.00 sec 128 KBytes 1.06 Mbits/sec
[ 5] 8.00-9.02 sec 128 KBytes 1.04 Mbits/sec
[ 5] 9.02-10.01 sec 0.00 Bytes 0.00 bits/sec
[ 5] 10.01-10.95 sec 0.00 Bytes 0.00 bits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.95 sec 3.25 MBytes 2.49 Mbits/sec receiver
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Server listening on 5201 (test #81)
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Accepted connection from 192.168.9.42, port 61916
[ 5] local 192.168.9.99 port 5201 connected to 192.168.9.42 port 61917
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.01 sec 2.00 MBytes 16.7 Mbits/sec
[ 5] 1.01-2.00 sec 2.00 MBytes 16.8 Mbits/sec
[ 5] 2.00-3.00 sec 3.25 MBytes 27.3 Mbits/sec
[ 5] 3.00-4.01 sec 1.38 MBytes 11.4 Mbits/sec
[ 5] 4.01-5.01 sec 1.50 MBytes 12.6 Mbits/sec
[ 5] 5.01-6.00 sec 2.25 MBytes 19.0 Mbits/sec
[ 5] 6.00-7.00 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 7.00-8.01 sec 2.00 MBytes 16.5 Mbits/sec
[ 5] 8.01-9.01 sec 1.88 MBytes 15.8 Mbits/sec
[ 5] 9.01-10.01 sec 1.62 MBytes 13.7 Mbits/sec
[ 5] 10.01-10.06 sec 256 KBytes 35.2 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.06 sec 20.6 MBytes 17.2 Mbits/sec receiver
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