App setup with Mac

Hi I thought I would post a few questions here on my experience with the remoter app. First off the application has all of the features that I was looking for in an vnc app. However, is there any way to improve the use of applications on my Mac? Every time i go into the Mac's applications it will freeze the application that i am in. Especially safari. Now my Internet connection is horribly slow, 2 Mbps dsl. But should the app require that much speed? I will take an opinion and use your suggestions. Thanks and cheers.