Libreoffice is a slow piece of shit

Subj!!! I hate this piece of software. It is fucken slow, when
a) it works with PostgreSQL-based datasource (e.g. as a bibliography source),
b) it works awfully slow with document, in which we store editing history...
The bad news are that there is little alternatives. Maybe the next time I wish to write some big and complex document, I'll try to do it in Google Docs...