When I downloaded the game a couple weeks ago it was fine and I had very little problems with it, and my loading times for the main menu and joining matches was around 10-20 seconds. Since the latest couple patches my loading times have increased to about 45-60 seconds for both situations.
At first I thought it might have been me tabbed out and loading youtube videos, but I then tried without anything on in the background and only the game running and there was no improvement with the loading at all. I would uninstall and re-install the game just to see what happens, but my Internet is incredibly slow and it would take me hours to re-download it.
I know my PC isn't the best and won't ever have fast loading times but nothing has changed on my computer since I've had the game and the problem on started after the latest patches.
I may also add that all my drivers are up to date.