4.14.3 Bad performance with multiple windows open
When I have multiple (2-3+) editor windows open, e.g. static mesh editor window, mat instance editor window, the whole editor slows to a crawl, below 10 fps. This occurs even when the editors are tabbed and not currently being rendered.
With a single editor window open performance is ok.
This has started happening since 4.14.
asked Jan 31 '17 at 11:33 AM in Bug Reports
Thanks for taking the time to elaborate and provide some extra information. We were able to reproduce this internally and have entered a bug report for the issue. You can track the issue by clicking the link below.
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answered Feb 07 '17 at 07:40 PM
Hi, i encountered similar probs. Is this still an open issue?
answered Aug 15 '17 at 08:48 PM
I have been working with 3 or 4 monitors for a very long time and just recently windows 10 updated (not sure if this was the cause or not) when this started happening. It drops below 10fps and unreal becomes unusable, the interface lags really badly.
If I type stat gpu in the editor it says Slate UI is taking anything between 20-200ms but as soon as I close all the extra windows and just have the main window it drops to 0.6ms.
I understand there is going to be some performance impact having more than one window open but it shouldn't be this huge and never used to be a problem.
I've tried everything to fix this (including -DX12) but nothing helps, did anyone here solve the issue? It's going to affect my productivity massively if I can't fix it :(
answered Dec 12 '17 at 05:28 PM
Just thought I'd come back and say I fixed this by uninstalling Geforce Experience. It seems the screen capture was causing it, it might also fix if you just disable that without uninstalling the whole thing.
answered Feb 11 '19 at 06:02 PM
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