Comment 39 for bug 1491064

For anyone still interested in this, I've contributed a bounty for this bug.

https://www.bountysource.com/issues/26531768-text-editing-very-slow-in-0-91-on-files-with-many-objects-normal-in-0-48

A solution would be pretty game-changing for me (for making scientific posters), and I imagine several other people as well. If it affects anyone else please consider contributing a small amount -- it could help encourage one of the developers to spend some time on it.