Issue With Upload Speed on 962UiGS-5HacT2HnT

I’m looking for some advice for my issue with wifi managed by capsman on (962UiGS-5HacT2HnT). The wifi is on 5Ghz/40Mhz/Channel 36, it’s a clear channel as nobody using 5ghz in my area. However, the upload speed is very slow for Wifi-LAN as seen below:

α iperf3 -c 10.0.1.13
Connecting to host 10.0.1.13, port 5201
[  5] local 10.0.1.199 port 51043 connected to 10.0.1.13 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec   169 KBytes  1.38 Mbits/sec                  
[  5]   1.00-2.00   sec  13.6 KBytes   111 Kbits/sec                  
[  5]   2.00-3.01   sec  2.32 KBytes  19.0 Kbits/sec                  
[  5]   3.01-4.01   sec  2.32 KBytes  19.0 Kbits/sec                  
[  5]   4.01-5.01   sec  9.28 KBytes  76.0 Kbits/sec                  
[  5]   5.01-6.00   sec  4.64 KBytes  38.2 Kbits/sec                  
[  5]   6.00-7.00   sec  0.00 Bytes  0.00 bits/sec                  
[  5]   7.00-8.01   sec  2.32 KBytes  19.0 Kbits/sec                  
[  5]   8.01-9.00   sec   113 KBytes   927 Kbits/sec                  
[  5]   9.00-10.00  sec  56.2 KBytes   460 Kbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec   372 KBytes   305 Kbits/sec                  sender
[  5]   0.00-10.00  sec   245 KBytes   201 Kbits/sec                  receiver

iperf Done.
α iperf3 -c 10.0.1.13 -R
Connecting to host 10.0.1.13, port 5201
Reverse mode, remote host 10.0.1.13 is sending
[  5] local 10.0.1.199 port 51046 connected to 10.0.1.13 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  30.0 MBytes   251 Mbits/sec                  
[  5]   1.00-2.00   sec  31.0 MBytes   260 Mbits/sec                  
[  5]   2.00-3.00   sec  31.0 MBytes   260 Mbits/sec                  
[  5]   3.00-4.00   sec  30.7 MBytes   257 Mbits/sec                  
[  5]   4.00-5.00   sec  31.0 MBytes   260 Mbits/sec                  
[  5]   5.00-6.00   sec  31.0 MBytes   260 Mbits/sec                  
[  5]   6.00-7.00   sec  30.6 MBytes   257 Mbits/sec                  
[  5]   7.00-8.00   sec  31.0 MBytes   260 Mbits/sec                  
[  5]   8.00-9.00   sec  29.3 MBytes   246 Mbits/sec                  
[  5]   9.00-10.00  sec  29.4 MBytes   247 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   306 MBytes   257 Mbits/sec   49             sender
[  5]   0.00-10.00  sec   305 MBytes   256 Mbits/sec                  receiver

iperf Done.

The 962UiGS-5HacT2HnT seems to be working normally when connecting to the Internet:

Just for a test, if I connect using a different AP device (Apple Timecapsule) the Wifi-LAN connection is normal:

α iperf3 -c 10.0.1.13
Connecting to host 10.0.1.13, port 5201
[  5] local 10.0.1.199 port 59040 connected to 10.0.1.13 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  21.8 MBytes   182 Mbits/sec                  
[  5]   1.00-2.00   sec  25.8 MBytes   217 Mbits/sec                  
[  5]   2.00-3.00   sec  25.2 MBytes   211 Mbits/sec                  
[  5]   3.00-4.00   sec  25.7 MBytes   216 Mbits/sec                  
[  5]   4.00-5.00   sec  24.7 MBytes   208 Mbits/sec                  
[  5]   5.00-6.00   sec  26.5 MBytes   222 Mbits/sec                  
[  5]   6.00-7.00   sec  26.8 MBytes   225 Mbits/sec                  
[  5]   7.00-8.00   sec  28.2 MBytes   236 Mbits/sec                  
[  5]   8.00-9.00   sec  24.5 MBytes   205 Mbits/sec                  
[  5]   9.00-10.00  sec  26.3 MBytes   221 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec   256 MBytes   214 Mbits/sec                  sender
[  5]   0.00-10.00  sec   255 MBytes   214 Mbits/sec                  receiver

iperf Done.
α iperf3 -c 10.0.1.13 -R
Connecting to host 10.0.1.13, port 5201
Reverse mode, remote host 10.0.1.13 is sending
[  5] local 10.0.1.199 port 59044 connected to 10.0.1.13 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  36.4 MBytes   305 Mbits/sec                  
[  5]   1.00-2.00   sec  39.9 MBytes   335 Mbits/sec                  
[  5]   2.00-3.00   sec  39.3 MBytes   329 Mbits/sec                  
[  5]   3.00-4.00   sec  40.1 MBytes   336 Mbits/sec                  
[  5]   4.00-5.00   sec  39.6 MBytes   332 Mbits/sec                  
[  5]   5.00-6.00   sec  37.6 MBytes   315 Mbits/sec                  
[  5]   6.00-7.00   sec  38.2 MBytes   321 Mbits/sec                  
[  5]   7.00-8.00   sec  38.5 MBytes   323 Mbits/sec                  
[  5]   8.00-9.00   sec  38.5 MBytes   323 Mbits/sec                  
[  5]   9.00-10.00  sec  38.9 MBytes   326 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   389 MBytes   326 Mbits/sec   81             sender
[  5]   0.00-10.00  sec   387 MBytes   325 Mbits/sec                  receiver

iperf Done.

Here’s my net diagram:

Here’s mikrotik settings for 951G-2HnD (CAPsManager):

# dec/20/2020 12:14:59 by RouterOS 6.46.8
# software id = EFWT-CUVK
#
# model = 951G-2HnD
# serial number = X
/caps-man channel
add band=2ghz-b/g/n control-channel-width=20mhz extension-channel=disabled frequency="" name=channel24
add band=5ghz-a/n/ac control-channel-width=20mhz extension-channel=Ceee name=channel5 skip-dfs-channels=yes
/caps-man datapath
add client-to-client-forwarding=yes local-forwarding=yes name=datapath-xxxx
/interface bridge
add name=bridge1
/interface wireless
# managed by CAPsMAN
# channel: 2432/20/gn(27dBm), SSID: XXXX, local forwarding
set [ find default-name=wlan1 ] disabled=no ssid=MikroTik
/caps-man security
add authentication-types=wpa2-psk encryption=aes-ccm group-encryption=aes-ccm name=security-xxxx
/caps-man configuration
add channel=channel24 country=canada datapath=datapath-xxxx installation=indoor mode=ap name=cfg24 security=security-xxxx ssid=XXXX
add channel=channel5 country=canada datapath=datapath-xxxx installation=indoor mode=ap name=cfg5 security=security-xxxx ssid=XXXX
/interface wireless security-profiles set [ find default=yes ] supplicant-identity=MikroTik
/ip pool add name=dhcp-pool ranges=10.0.1.100-10.0.1.200
/ip dhcp-server add address-pool=dhcp-pool disabled=no interface=bridge1 name=dhcp1
/caps-man manager set enabled=yes upgrade-policy=suggest-same-version
/caps-man provisioning add action=create-dynamic-enabled hw-supported-modes=gn master-configuration=cfg24 name-format=prefix-identity name-prefix=2.4g
add action=create-dynamic-enabled hw-supported-modes=ac master-configuration=cfg5 name-format=prefix-identity name-prefix=5g
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
/interface wireless cap
set bridge=bridge1 discovery-interfaces=bridge1 enabled=yes interfaces=wlan1
/ip address add address=10.0.1.254/24 interface=ether1 network=10.0.1.0
/ip dhcp-server network add address=10.0.1.0/24 gateway=10.0.1.1
/ip dns set servers=208.67.220.220,208.67.222.222
/ip route add distance=1 gateway=10.0.1.1

Here’s my setting for 962UiGS-5HacT2HnT (CAP):

# dec/20/2020 12:16:29 by RouterOS 6.46.8
# software id = A80V-WY3S
#
# model = RouterBOARD 962UiGS-5HacT2HnT
# serial number = X
/interface bridge
add name=bridge1
/interface wireless
# managed by CAPsMAN
# channel: 2462/20/gn(27dBm), SSID: XXXX, local forwarding
set [ find default-name=wlan1 ] disabled=no ssid=MikroTik
# managed by CAPsMAN
# channel: 5180/20-Ceee/ac/P(28dBm), SSID: XXXX, local forwarding
set [ find default-name=wlan2 ] disabled=no ssid=MikroTik
/interface wireless security-profiles set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile set [ find default=yes ] html-directory=flash/hotspot
/caps-man access-list
add action=accept allow-signal-out-of-range=10s disabled=no interface=any signal-range=-70..120 ssid-regexp=""
add action=reject allow-signal-out-of-range=10s disabled=no interface=any signal-range=-120..71 ssid-regexp=""
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
/interface wireless cap
set bridge=bridge1 discovery-interfaces=bridge1 enabled=yes interfaces=wlan1,wlan2
/ip address add address=10.0.1.253/24 interface=ether1 network=10.0.1.0
/ip dns set servers=208.67.220.220,208.67.222.222
/ip route add distance=1 gateway=10.0.1.1

I did try setting it up without CAP and it still slow. Can anyone help or have any suggestions to make 962UiGS-5HacT2HnT work faster?

Thanks.
-k-