To be honest, I use both daily. MSOffice for work, and LibreOffice for personal usage and I cannot tell a difference performance wise. However, my use case is l

To be honest, I use both daily. MSOffice for work, and LibreOffice for personal usage and I cannot tell a difference performance wise. However, my use case is limited to simple budgetary spreadsheets, simple docs, etc. If you are working with large datasets in excel or something than things might differ. Or maybe the performance depends on the hardware both are being run on possibly. Classic case of "it works on my computer" I guess.