I’ve been using LibreOffice Impress to create slide decks for my work for many years now. It works well in many cases, but I’ve found that in presentations that have lots of connectors the program takes a very long time to become responsive. For example, this slide deck, when loaded, sends the CPU usage up to 100% (as reported by
top) for about ten minutes before dropping down to a point where the program is usable. During that time, almost all operations will be slow and, in presentation mode, slides take multiple seconds to flip. After doing this, if I try starting a presentation from one of the middle slides, I have to similarly wait again as the CPU usage spikes up to 100%.
This has led me to splitting my presentations apart into multiple slide decks so that the wait times are lower, which interferes with the presentations I’m giving.
For reference, here’s the version information on my LibreOffice install:
Version: 220.127.116.11 Build ID: 1:6.0.7-0ubuntu0.18.04.10 CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3; Locale: en-US (en_US.UTF-8); Calc: group
I’m on Ubuntu 18.04. Happy to provide additional information or other slide decks in which this behavior triggers.