Also, if you have the little wireless icon showing on the Taskbar, you can right-click on it and select "OPen Network and Sharing Center".
Then on the right-side of the screen you'll see "connections" and your wireless network name. Click on that, it will tell you both the speed, and the signs; strength.
Also, your system may still be downloading Windows updates in the background, and there are a lot to download and will require many reboots. So it may still slow you down. However, you should check the speeds and signal strength as i mentioned above.
That is too slow if you are using both a wireless N card and a Wireless N router. I'm not certain if you are or not on the router. The PC yes, but not sure if the router is wireless N.
You can go in Task Manager and there should be a Networking tab that will show your connection speed there, but it does not show the signal. The network sharing (right-click taskbar icon) would show the signal strength.
You can try moving closer to the router like you said to see if the speed picks up.