Hi again,
I thought I should inform you that I foundation a solution to my problem, in case anyone else has had experienced the issue.
Make sure to use WPA2 AES when enabling security or suffer poor throughput. Dont use WEP or WPA/TKIP mode.
For some reason, it looks like the security mode throughput optimization is not present in the 1522.
As soon as I changera to AES my speed kicked up to 90 Mbps up/down. Also I changed to 5 GHz mode, which added small improvement, but the main improvement was due to AES.
Found about the issue when Reading this article.
http://www.smallnetbuilder.com/wireless/wireless-reviews/30455-d-link-dap-1522-review-dual-band-draft-11n-for-the-masses?start=5