Hi there thingle!
I have a couple of articles for you that should help you set up this network and optimize it. First, if you are using a password protected Wi-Fi network, you will want to use the WPA2 security protocol for the best speed results. The reasons for this are explained in this article:
AirPort: Slow 802.11n connection speed when connected using older WEP or WPA security mechanisms
http://support.apple.com/kb/ts3361
You will also want to reference this article for the basic router settings that will be best for usage with your iOS and OS X devices:
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/ht4199
I also have one more article for you that will help you set up multiple routers for use as one network:
Wi-Fi base stations: Setting up and configuring a roaming network (802.11 a/b/g/n)
http://support.apple.com/kb/ht4260
Thanks for being a part of the Apple Support Communities!
Regards,
Braden