I just reinstalled Leopard on my Mac after Finder kept acting weird and during the reinstallation of my apps I started using Safari 4 without any input managers or plugins. I was going to install them but I'm now not so sure. Safari feels quite better. Even a page full of ads feels like it actually appears faster after I click it's link. Do these things actually bog Safari down a little or am I probably imagining it due to having a fresh install? It would seem silly that blocking ads would take as long or even longer than just showing them.