Bad wifi connection, need help?

I just got a new laptop with a broadcom 5G WiFi 3-Stream 802.11ac. I know wifi is naturally worse than a lan line, but my last laptop was able to maintain higher speeds than this current card, and didn't drop speeds suddenly. I'm guessing it has something to do with the advanced settings, but i'm lost there. If somebody could take a look and recommend what settings to use would be greatly appreciated.
Here's the advanced settings:
20/40 Coexistance: Auto
40MHz Intolerant: Disabled
802.11h+d: Loose 11h
802.11n Preamble: Auto
Antenna Diversity: Auto
AP Compatibility Mode: Higher Performance
Association Roam Preference: Disabled
Band Preference: None
Bandwidth Capability: 11a/b/g:20/40MHz
Bluetooth Collaboration: Auto
BSS PLCP Header: Auto (Short/Long)
BT-AMP: Enabled
Disable Bands: None
Fragmetation Threshold: 2346
IBSS 54g(tm) Protection Mode: Auto
IBSS Mode: 802.11a/b Only
Locally Admin MAC Address: Not Present
Minimum Power Consumption: Enabled
Mixed Cell Support: Disabled
Power Output: 100%
Priority & VLAN: Priority & VLAN Disabled
Rate (802.11a): Best Rate
Rate (802.11b/g): Best Rate
Roam Tendency: Auto
Roaming Decision: Auto
RTS Threshold: 2347
Short GI: Auto
WMM: Auto
WZC IBSS Channel Number: 11(20MHz)
XPress(TM) Technology: Disabled

Here's speed tests with the wifi, and lan line.
wifi: http://www.speedtest.net/result/3201414993.png
lan: http://www.speedtest.net/result/3201420601.png
http://imgur.com/a/AQ4sc

Tristan2014-01-01T16:47:10Z

Rate (802.11a): Best Rate What are the options for this because that connection type is insanely old and is not compatible with 802.11(ac) (b) (g) (n) if you turn that off i think that should do it.