How to eliminate high ping on Wi-Fi in CAPsMAN?

Good day.

Faced a problem, capsman is configured on the router, 4-5 clients (no more) are constantly connected to the cAP point, the load is small, but the delay between the router and wireless clients constantly “jumps” from 20 to 200-300 ms.

Is it possible to configure the cap to reduce latency to acceptable values?

I checked the presence of interference, they are not.

/caps-man configuration
add channel.band=2ghz-onlyn channel.control-channel-width=20mhz
channel.extension-channel=disabled channel.frequency=“” country=russia3
datapath.bridge=bridge-local datapath.local-forwarding=no hide-ssid=yes
mode=ap name=Zavod_Cap rates.basic=“” rates.ht-basic-mcs=“”
rates.supported=“” rx-chains=0,1,2 security.authentication-types=
wpa-psk,wpa2-psk security.encryption=aes-ccm security.group-encryption=
aes-ccm security.passphrase=“password” ssid=wifi tx-chains=0,1,2