Slow internet connection?

[Kuya Boogie]

Hello. I am having problems with my internet connection with my new ASUS M51AC-US016S. I have not yet downloaded any apps (except Webroot) or games and has only been checking my mail, Facebook, and Youtube. But every time I open them, it takes at least a minute to download the content. Does this has something to do with the new computer (like having a high processor, graphics, etc.?) or is there just something wrong with the internet connection? I tried restarting my wifi connection and has not helped. My laptop and other gadgets that depend on this wifi connection have been working perfectly well besides this ASUS M51AC-US016S.

Thank you.
Joshua:
Thank you for answering. But I do have another question. Wouldn't be updated if I just bought this brand new ASUS M51AC-US016S last Sunday? And if I ever update its driver, do you think it would make such a difference with the speed of the connection? It just doesn't make sense on how I bought this new desktop computer and it's already working slow.

PS: I also rebooted the computer and it is still the same.