need solution for 225 Mbps internet speed

So today I've upgraded my internet connection from 75/10 Mbps to 150/10 Mbps package. This is a cable ISP provider and wired to the modem/router or my wireless router I can get through speedtest.net or through my local ISP speed check a top of 220 Mbps download. Upload up to 10 Mbps.
Here is my configuration:
ISP->Cable Modem/Router with wifi off->WNDR3700 ver. 1. Both devices have gigabit ports as long as I can get the top speed via wire on one of the switched ports of the Netgear router.
My probem is wireless.
I have an Acer Aspire TimelineX 1830T with Broadcom 802.11n (b,g,n) wifi card which connects at 300 Mbps to Netgear (2.4 Ghz) but the top tested speed with full signal is 15 MBps - 120 Mbps. Obviously I'm losing lots of it so what can I do? I don't expect to get the same wired speed but at least what the ISP is officialy supposed to provide which is $150 Mbps.
I've just spent $320 in RAM and SSD upgrades so upgrading the laptop is not an option.
Solutions?
I live in Canada and the provider is Rogers.
Thank you.

 

No solutions that require no spendings. 120mbps on Wi-Fi is very good actually. You could possibly get higher had you used three stream card (Intel 6300 with three antennas) and a three stream router.

So to get any higher you'd have to spend quite a nice sum of money- not worth it.

BTW- ISPs provide a sort of "turbo" mode for a while (for short downloads)- if you run a proper download (several GB) it will average at 150mbps.

 

Yes I think you're right. Rogers has that turbo mode.
Would a new laptop and a new router give me more juice?
How far are we from c standard on laptops?
Thanks for your reply.

 

It's not worth it considering you are at 120mbps and you could get only up to 150mbps- to do this you'd have to spend at least $90 on a refurbished E4200v1 (or significantly more on a non-refurb) and some $30 for an Intel 6300 and an antenna.

A good 802.11 ac router would set you back $180 and whatever you'd pay for a Wi-Fi card (there are no ac notebook cards at the moment).

All that amounts to between $120 and $220+.

It would be more practical to spend money on a NAS that would be used as a storage, backup and a download station i.e. Zyxel NSA310 costs $90 and a Seagate ST2000DM001 (2TB on two platters) another $100.

 

I have tones of storage available. I'm good here.
Well, in this case I'm going to wait until a good and reliable technical solution comes out.
So far I average via wifi around 130 Mbps ( tested 8-12 GB files downloaded from hosters).
There is actually an ac usb card available here:
http://www.netgear.com/home/products/wireless-adapters/ultimate-wireless-adapters/A6200.aspx
Thank you for your help.