Adobe Acrobat reader is used by many people to access their PDF files. But it really irritates when acrobat reader takes 5 to 10 seconds to load when you want to open a pdf document. Here is a way to speed up the loading time.
1. Go to the installation folder of acrobat reader (C:\program files\adobe\acrobat\reader\.. whatever)
2. Move all the files and folders from the "plugins" directory to the "Optional" directory. (I repeat.. cut and paste the files NOT copy & paste). Also make sure that acrobat reader is not open else it will lock the files and not allow you to move the files).
Now your acrobat reader will load very fast and almost as good as notepad. Try it and share your own tips to speed up loading time..
Or simply install Foxit or Sumatra.