RT-N66U Wireless Speeds are halved vs Wired

[Gen10]

A speedtest on my PC (Wired) gives me ~117 mbps download and 23 mbps upload.

A speedtest on my Nexus 5 (2.4 GHz) gives me a download of 53 mbps and an upload of 22 mbps.
A speedtest on my MacBook Pro Mid 2010 (2.4 GHz) gives a download of 80 mbps and an upload of 22 mbps.

A speedtest on my Nexus 5 (5 GHz) gives me a download speed of 35 mbps and a upload speed of 23 mbps. (also my router makes a wierd sound when doing this test and only when doing the 5 GHz test)
A speedtest on my MacBook Pro Mid 2010 (5 GHz) gives me a download speed of 33 mbps and a upload speed of 23 mbps.

Both were placed very close to the router.

I just recently upgrade my internet speeds from my comcast 50 mbps to the extreme 105 mbps

Also before when I had my 58 mbps internet I would get about 52 mbps on my wireless device so its as if my wired connection speed changed but my wireless didn't which makes no sense.

My settings:
http://gyazo.com/aec39d80f2d353c46ae0f91cc500d87e (2.4 GHz)
http://gyazo.com/596c64367a633af1594d704ce2d67593 (5 GHz)

My modem is a SB6120

I am on the latest merlin build 374.43