Hi,
fresh install of 5.1 and new project and it seems to run incredibly slow - If I Ctrl-Z it can take up to 20 seconds to undo the action. Closing the project can take up to a minute. Generally the editor is pretty laggy.
Any settings tweaks I can select to improve the editor speed?. I have two fairly hi-spec machines at home and work. Tried it on both and same result
Hey there @Fnordcorps! Is this only applicable for 5.1? If not, what other versions recently have been having issues? Depending on your projects, if you’re still compiling shaders, even some high spec rigs can struggle to do other operations during.
Not sure if this will help in your case as i did not experiece the ControlZ issues “undos”. The laggyness i felt on 5.1, slow menus, delayed saves etc seemed to clear up after a clean up.
https://forums.unrealengine.com/t/how-to-force-shader-recompile-of-everything-like-the-first-time-you-run-the-engine/1450/4?u=shawndageek
1+ same here
UE5.1 extremely slow in performing any tasks things like renaming, undo, save change variables anything, basically everything is much slower compared to EA
also the new UI compared to EA is a big downgrade
Hi - this happens in 5.1 only. My 4.27 projects run fine. Have tried this in multiple projects as well. Lots of delays when saving/performing some tasks. Undoing an action can take up to a minute. I have a pretty hi-spec pc, lots of Ram etc
It’s definitely a more common complaint I’m hearing about 5.1 performance across the board. Some people have been getting some relief with Shawn’s post, but others are still having issues, especially on Undo and other usually memory checking commands. I don’t have too much idea besides the shader recompile or a possible full cleanup of the install.
has anyone had any joy with this? 5.1 is next to unusable; takes ages to do the simplest of things. Tried the clean idea and that unfortunately hasn’t worked
In your project folder, you could try deleting the saved/build/intermediate/derived data cache folders. These are folders which we normally ignore in source control for versioning. I discovered this as a fix because rolling back changelists didn’t resolve the issue, so it had to be something in one of the Ignored folders.
This also happened to me in 5.0.3 so not a new issue but extremely annoying.
It’s much better! Still slow in places but doesn’t take 13 seconds to set a breakpoint! Thanks
With that fixing it, maybe there’s something wrong with the way blueprints or the undo cache that might explain it. This is excellent information. Thanks!
Hey @Fnordcorps, give this a shot and see if it clears it up further than just the shader recompile/cache clear.
A project I was working on (in 5.1) was very laggy on Undo/Close. I opened it in 5.2 and so far it works expected. Thanks for posting this when I switched from 5.1 to 5.2 it worked for me.
I was having a laggy Undo and Redo in 5.3 and after reviewing the many editor plugins that I have installed, I realized the culprit was Lady Bug Tracker:
I disabled it and things are instant now, really instant undo and redo.
Now to figure out how to use the plugin without lagging the editor…
I have no plugins installed and am running a serious rig and the Engine is just flat out slow and often unresponsive. Shader compiler runs on every core on my machine every time I open a project and or change a map. Often this eats up all of my processing power and just stops for 10 to 60 seconds at a time. They need to rework it to compile and slowly save out changes and shaders after you work and or shutdown somehow. Right now the Engine is fast becoming infuriatingly slow and worse it is clearly how they built it to compile shaders. It is a serious failure on the compiler’s side.