My computer is faster now though the speed test still shows my old MBP as being faster for now. I find once I've put in a website and then go back to it after going out of it, it is faster. So I guess it just has to build up some cache. I also changed my DNS numbers to the Google ones 8.8.8.8 and 8.8.4.4 instead of 192.168.2.1. that was in there already.
The slowness may be a temporary aberration resulting from high Internet traffic at the moment; give it a chance.
Enjoy your new MBP!
