Comment 1 for bug 1674397

I'm not a programmer, so I can't provide any constructive troubleshooting info. But I just wanted to add a couple more comments or thoughts.

Are you able to come up with any way to quantify the performance difference (between 0.48.x and 0.91/0.92)? I'm thinking just some way to make it more objective (than subjective).

You have confirmed that the performance problems that you see across all different kind of systems, are not related to large file size, right? You see them just as often in a new blank file, as in a file with let's say one mb worth of content?

I have seen a couple of sporadic reports like this (in user support forums). But none where we could pin down any particular cause or solution. So I'm subscribing myself to your report, and will be interested to follow it (even if it turns out to be a duplicate).

I wrote this article/tutorial some time ago (Tips to Avoid Performance Issues: http://forum.inkscapecommunity.com/index.php?action=articles;sa=view;article=35) which I share just in case something there might help you, that you don't already know about. Those are all for issues related to large file size, but still, I would guess the tips should help with performance issues of any cause. (Although if they don't, perhaps it would be a clue to the problem you see?)

Good luck :-)