Idea to connect two (2) mikrotik routers- still one LAN

Im confused! I need to extend my network and want use two mikrotik routers, becouse for one device is too many work (load -80-100%) - i want that my wifi control (radius, traffic shaping, firewall) works on other router, but rest of my network works with wired client! Suggest the methods that i can use to connect routers to work all what i need! look at attached scheme - i need just ideas to look…
(wifi access points i reach with Vlans)
mk_config.jpg

I think its as easy as connecting the second router to the specific port and vlan you want, and then just reconfigure the specific tasks to each specific router.

More info would be needed.

you could could use pptp to connect to the other router, its probably easier to just use more capable hardware tho. The 1100x2AH is quite affordable and has lots of gusto.

I want to divide jobs! Next week i recieve 2peaces of 1100AHx2 so i have recourse! But my aim is to divide jobs - one for wifi, second for wired! Becouse my wifi infrastructure have completly diffeent queues and access to my intranet recourses!