创建2D滚动贴图的最佳方法

I am writing a program in visual basic 2010 to create a 2D scrolling map. I am using Pictureboxes at the moment, all 50 by 70 in size. It starts with 1, and depending on what is needed may easily end up with 1000 - 2000 of them. They all need to be clickable. I am concerned it might use too many resources and run too slow. Can anyone tell me what the best approach to make something like would be.I am writing a program in visual basic 2010 to