Last few days, I switched to Windows again (yeah it's the C# addiction - but I believe that's healthy addiction so it's all good in my book) and there is one thing I did notice when comparing Windows and Ubuntu. I have to say it was easy to spot it and that is responsiveness of UI and Windows wins this category. Another difference, and this one was more noticeable, I noticed is opening csv files in Microsoft Office vs LibreOffice and Microsoft Office not only opens up quite faster, but displays the graphs faster as well and manipulating graphs was more responsive. Last but not least and again quite a difference, execution of C# .Net prototype vs Python prototype - C# .Net won big time. Seems like Microsoft does one thing right and that is caring about performance of their software.