LibreOffice on my mac lags a lot, especially when opening a document, adding a maths formula and it freezes now and then so I need to force quit. Actually, it's getting somewhat frustrating. NeoOffice seems to have better optimization for mac but I hate the idea of earning money based on an open source software.
Sorry, nothing actionable here. But please keep your LibreOffice install current (or revert to an older 4.4, or 5.1 or 5.2 build if that works better for you [1]), current release is 5.3.1--with some significant patches affecting macOS ready for 5.3.2 =-ref-= [1] http://downloadarchive.documentfoundation.org/libreoffice/old/