Play this progression from START to FINISH at an even tempo. You will notice that each box pattern starts at a dot on your guitar: open first and then fret 3, 5, 7, 9, and 12. Memorize this page and then time yourself from start to finish. You should time yourself once a week and write it down. With a lot of practice you will get faster and faster.
Here is an example of a chart where you can write down the date and your speed. Click the Print Button if you need to print this page. You can also download a pdf file to your computer and print that.