Is anyone else bothered by the jerkiness of the rendering? The scollbar seems to jump slightly as the presenter is demonstrating it. Comparing the scrollbars on

Is anyone else bothered by the jerkiness of the rendering? The scollbar seems to jump slightly as the presenter is demonstrating it. Comparing the scrollbars on my mac, they move smoothy. Jerkiness is something I notice a lot when using linux and windows and to a minor degree some OSX programs. Is this a hard problem to solve?