I am a regular Libre Office user. The newer versions like this LL (UbuntuLTS) seem to use more loading memory, and the clipboard settings seem to be memory hogs. On the same machine, where I dual boot LL with Debian 8 it loads faster in LL but clipboard actrions lag, and it does not like really big documents. I am editing a novel, and an academic work at present, one of a thousand pages, and another about 800 pages. Writer is unreliable slow and sometimes freezes with these big documents in LL (UbuntuLTS) for some reason, and though it loads quite a bit slower intially it works flawlessly in Debian 8. The LL version is probably newer than the one I'm using in Debian 8. It is probably not a LL issue because I recently installed Debian 9 on another mcahine, and Libre Office seems a little slower than on Debian 8, but I can't say for sure becuse my Debian 8 machine has a faster CPU/GPU. I'm sure the LL version has more features enbaled than the Deb 8 version. It may be that you can simply disable some features in Office and the issue will go away. I've been too busy with other things to look into that. Some one here or a Libre Office forum may be able to help you. It may eb apples and oranges though because I use Gnome in Deb and this is XFCE.
TC
TC
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