Web browser control WP8 leaking/using too much RAM?-Collection of common programming errors

I have been developing for WP7 for a while now and have been using the webbrowser control to manage some of the webpages. I was able to have 8 web browser controls open, and everything was running smoothly and didn’t crash at all in WP7.

I tried to recreate (not port) the same application to WP8, and all of a sudden it keeps crashing on 1 or 2 webbrowser controls. I used the memory tracker and saw that one web browser control was using 35-55mb of RAM. Does anyone know why the WP8 web browser control is so different from the WP7 control, and how to fix it? Thanks.