Thanks for your test!
I've connected my NAS to the 2.5G Lan1 port and did some iperf3 tests and a quick realtime test with OpenWrt 23.05.3.
In realtime I was able to copy with ~203MB/s to my NAS while connected via Wifi AX (160MHz, Channel 40. Client: Intel AX201 160MHz. I'm not sure how meaningful these results are but I'm kinda happy with them.
NAS DS718+ iperf3 server, 2.5G Realtek 8156BG, RTL8152 driver
0bda:8156:3104 00 3.20 5000MBit/s 256mA 1IF (Realtek USB 10/100/1G/2.5G LAN):
root@OpenWrt:~# iperf3 -c 192.168.1.253 -t 30s
Connecting to host 192.168.1.253, port 5201
[ 5] local 192.168.1.1 port 33536 connected to 192.168.1.253 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 247 MBytes 2.07 Gbits/sec 0 1.02 MBytes
[ 5] 1.00-2.00 sec 243 MBytes 2.03 Gbits/sec 0 1.08 MBytes
[ 5] 2.00-3.00 sec 244 MBytes 2.04 Gbits/sec 0 1.15 MBytes
[ 5] 3.00-4.00 sec 245 MBytes 2.05 Gbits/sec 0 1.26 MBytes
[ 5] 4.00-5.00 sec 243 MBytes 2.04 Gbits/sec 0 1.26 MBytes
[ 5] 5.00-6.00 sec 241 MBytes 2.02 Gbits/sec 0 1.33 MBytes
[ 5] 6.00-7.00 sec 243 MBytes 2.04 Gbits/sec 0 1.33 MBytes
[ 5] 7.00-8.00 sec 245 MBytes 2.06 Gbits/sec 0 1.33 MBytes
[ 5] 8.00-9.00 sec 244 MBytes 2.05 Gbits/sec 0 1.33 MBytes
[ 5] 9.00-10.00 sec 244 MBytes 2.05 Gbits/sec 0 1.33 MBytes
[ 5] 10.00-11.00 sec 243 MBytes 2.04 Gbits/sec 0 1.33 MBytes
[ 5] 11.00-12.00 sec 245 MBytes 2.06 Gbits/sec 0 1.33 MBytes
[ 5] 12.00-13.00 sec 243 MBytes 2.04 Gbits/sec 0 1.33 MBytes
[ 5] 13.00-14.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 14.00-15.00 sec 245 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 15.00-16.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 16.00-17.00 sec 245 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 17.00-18.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 18.00-19.00 sec 241 MBytes 2.02 Gbits/sec 0 1.43 MBytes
[ 5] 19.00-20.00 sec 244 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 20.00-21.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 21.00-22.00 sec 245 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 22.00-23.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 23.00-24.00 sec 244 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 24.00-25.00 sec 243 MBytes 2.04 Gbits/sec 0 1.43 MBytes
[ 5] 25.00-26.00 sec 244 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 26.00-27.00 sec 244 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 27.00-28.00 sec 244 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 28.00-29.00 sec 244 MBytes 2.05 Gbits/sec 0 1.43 MBytes
[ 5] 29.00-30.00 sec 244 MBytes 2.04 Gbits/sec 0 1.43 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-30.00 sec 7.14 GBytes 2.04 Gbits/sec 0 sender
[ 5] 0.00-30.00 sec 7.14 GBytes 2.04 Gbits/sec receiver
iperf Done.
GL-MT6000, iperf3 server
root@OpenWrt:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.1.253, port 55392
[ 5] local 192.168.1.1 port 5201 connected to 192.168.1.253 port 55394
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 182 MBytes 1.53 Gbits/sec
[ 5] 1.00-2.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 2.00-3.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 3.00-4.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 4.00-5.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 5.00-6.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 6.00-7.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 7.00-8.00 sec 195 MBytes 1.64 Gbits/sec
[ 5] 8.00-9.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 9.00-10.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 10.00-11.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 11.00-12.00 sec 196 MBytes 1.64 Gbits/sec
[ 5] 12.00-13.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 13.00-14.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 14.00-15.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 15.00-16.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 16.00-17.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 17.00-18.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 18.00-19.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 19.00-20.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 20.00-21.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 21.00-22.00 sec 194 MBytes 1.63 Gbits/sec
[ 5] 22.00-23.00 sec 196 MBytes 1.64 Gbits/sec
[ 5] 23.00-24.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 24.00-25.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 25.00-26.00 sec 196 MBytes 1.64 Gbits/sec
[ 5] 26.00-27.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 27.00-28.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 28.00-29.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 29.00-30.00 sec 196 MBytes 1.65 Gbits/sec
[ 5] 30.00-30.08 sec 14.6 MBytes 1.64 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-30.08 sec 5.75 GBytes 1.64 Gbits/sec receiver