Wifi slows to crawl Intel Centrino wireless -N 1000

Wifi slows to crawl Intel Centrino wireless -N 1000

I've been experiencing sever bandwidth issues with my laptop and was hoping someone could help me resolve them.
Speedtest.net typically reports my dl rate is ~ 18 Mb, upload ~ 2.5 Mb and ping ~ 20ms, when I'm experiencing a slowdown it's ~ 1. ~1.5, 70, respectively. This slow down only affect my Linux installation, all other computers and my windows partition functions fine. My laptop is a lenovo Y570, running Ubuntu 12.10 with 3.9.0-030900rc6-generic kernal, and Windows 7. I was experiencing this issue before while using network-manager and switched to wicd, although there hasn't been any measure improvement
sudo lshw -c network
  *-network              
       description: Ethernet interface
       product: NetLink BCM57781 Gigabit Ethernet PCIe
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: eth0
       version: 10
       serial: [REMOVED]
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.130 firmware=sb latency=0 link=no multicast=yes port=twisted pair
       resources: irq:16 memory:f1800000-f180ffff memory:f1810000-f181ffff memory:f1820000-f18207ff
  *-network
       description: Wireless interface
       product: Centrino Wireless-N 1000
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: wlan0
       version: 00
       serial: [REMOVED]
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.9.0-030900rc6-generic firmware=39.31.5.1 build 35138 ip=[REMOVED] latency=0 link=yes multicast=yes wireless=IEEE 802.11bg
       resources: irq:58 memory:f1b00000-f1b01fff
sudo lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced