How to increase any WiFi networks upload speed , Do you know any kind of tricks?

Guys few days ago I have brought a new WiFi router. And I got my WiFi connection. But I am facing a problame. When I am checking my speed with a software named (fast) I can see the download and upload speed and it's really fast but when I am going to download anything it is fast as well but the uploading time I am not getting much speed. It's too slow for uploading anything. So please suggest me any way to get much speed for upload anything.