Slower professional

I (computer), have installed me a few weeks ago, the Internet Security 2006 package had previously Norton Internet Security 2006. Due to the good test results were I switched to G DATA, but not really satisfied. Also, I have from time to time problems with the internet connection. Startup time with the new package (although all were made from a security perspective, reasonable performance settings) an eternity. In contrast, the Web filter works very well in my opinion; Norton had the launch of Microsoft Office macro virus protection very extended. If the PC is running only once, then the product GDATA really behaves relatively performant. But the memory usage is but almost a joke.