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