High ping in online game when a person is walking between router and notebook

Hello.

I have a great problem - when a person is walking between router and notebook, my ping in online game is going too high and the game is freezing. When a person goes away, ping is fine all the time. Can I somehow config my MIKROTIK hAP lite classic with RouterOS v6.42.7 (stable) to avoid this wireless interference?

I cant move router and cant use cable LAN conection right now.

If you need some logs, then tell me plz how to make it. Thanks.

Extrasenses are in vacation. Post your config first.

How can I make it?

login via ssh and run

/export hide-sensitive

and copy-paste here

Thanks for help, gonna do it today. No private information in this export text?

hide-sensitive means hide private info