Best setup for Layer 3 switch and routers to extend wifi

[2myownbeat1]

Hello,  I have an SG200 26 port switch and 2 basic Cisco routers.   From my ISP I am going into router A.  From Router A I am connected to another cisco router B as an Access point and connected to the switch.  10 Computers and Backup are wired to Switch.  3 printers and 4 computers are wireless connected to Router B.  

My question is if I wanted to make sure that traffic between wireless clients and wired clients was at it's best is this the correct way to set this up?  Or should I have Router B connected to the switch and if so how would that be setup?  

[aftabsiddiqui]

Its unclear what do you mean by "at its best". Questions to answer..

Draw a network diagram

What are the cisco router models?

Are they all in a single broadcast domain?

How much traffic you are sharing between wired and wireless devices?

are you using 802.11ac? 5ghz? dualband?

are you facing any issue? did you check the wireless interference?

[devils_advocate]

So the configuration looks like this?

SG200 > Cisco Router B > Cisco Router A > ISP

Does the ISP plug straight into Router A or is there another device which is doing NAT?

I don't see why Router B needs to sit in between Router A and the switch, Router B (being used as an AP) can just hang off the switch as its just providing wireless access to the clients.

Are you using Vlans?

To be honest, with such a small setup, its probably working fine.
The connections the Wireless clients have to the network depends on the specification of the access point and the clients themselves. Moving Router B to hang off the switch will likely may no noticeable difference but its best from a 'design' perspective.

Hope that helps.