I noticed that, despite upgrading to a NVMe SSD, LibreOffice Writter was too slow to start (almost 10 seconds). After several tries to rectify the problem, I discovered that the problem was caused from recent files list, which included files that no longer exist or couldn't be accessed. Clearing the recent files, allowed LibreOffice Writter to open in under 2 seconds!
Steps to Reproduce:
1. Try open several libreoffice files, then delete them. Open files from external sources, then disconnect external sources.
2. Open LibreOffice
A full "recent files" list with files that no longer exist or can't be accessed, causes LibreOffice to start very slow.
LibreOffice starts very slow
User Profile Reset: No
Version: 188.8.131.52 / LibreOffice Community
Build ID: 20(Build:2)
CPU threads: 16; OS: Linux 5.11; UI render: default; VCL: gtk3
Locale: el-GR (en_US.UTF-8); UI: en-US
Ubuntu package version: 1:7.2.1-0ubuntu0.20.04.1~lo1
[Information automatically included from LibreOffice]
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes
Thanks for your bug report. Unfortunately, this is a long-standing issue. See bug 101302 and bug 131850.
*** This bug has been marked as a duplicate of bug 131850 ***