Well, you can do several things like scanning your PC with Avast, look to see how many other programs are loading on start up, and so forth. Also, it would help us to know how much random access memory you have installed, your processor type, if DMA is enabled on your hard drive, and examine your boot log. For a benchmark you can unintall Avast and time you entire boot process. For all we know your entire boot process has been 90 seconds or more and the Avast icon is your first indication of such. My first inclination is that you have too much stuff loading on boot and now you have added Avast into the line up. In other words, the red circle in Avast isn't you main problem.