Closing Mikrotik Bandwidth-test server port 2000

Hello for all Mikrotik people there..
So I was scanning my Public IPs and I found this port open as stated below ..
so what is the benefit of this port..?
is it necessary ..?
can i close it..?
11.png

Yes you can.

Tools > BTest Server and you uncheck “Enabled”.

Though, you should really set up a proper firewall so that no unnecessary ports are open to the public internet.

Still see it after I uncheck it.
and by the way I also have this one open.
22.png

https://help.mikrotik.com/docs/display/ROS/Services