To put it simply, on UE 4.2, I can run a blank project at 120 frames+. The same runs at less than 60 frames in 5.1, and less than 30 in 5.3.
when I say blank project, I mean BLANK. disabled lumen, nanite and anything else potentially labor intensive. Removed everything from the scene, etc. I have literally toiled away in project settings to cut out every single thing I can think of to see if I can get a totally blank project to run at 120 fps like it does in UE4. I have re-installed my UE5 versions twice.
I can’t go back to UE4 because my projects are heavily dependent on UE5 but getting sometimes less than 10 fps in PIE is not a good sign. sometimes, simply adding a mesh to the editor is painful.
Everything on my machine runs great other than this. I get high FPS when gaming. I have played with drivers, changed numerous settings, and even upgraded hardware. the result is always the same. I cannot count the numerous videos I have watched on “how to improve fps.” Is UE5 just fundamentally broken, or is there some magic solution out there?
yeah idk either. i suspect its just unreal engine 5 and it will get better with time as they refine everything. iv heard 5.3 is particularly bad however; 5.2 is more close to the performance of 5.1.
you could try to take a look at engine settings and see if theres something in there that may help.
idk. i went from 600fps to 120fps in a similar scene (4.27 to 5.3). im very sad
btw, running as standalone and multiplying by 1.25 will be around your built performance. if that’s below 30 fps, it might be worth either waiting it out and just hoping it gets better in an update or 2, or working 4.27. porting to 5+ isnt great (espeically when it comes to UI; totally new structs for style handling), but at least everything will be generally compatible. that being said, i suspect epic games is aware that their engine performance is awful at this point and it needs a refactor under the hood or something. editor performance i have noticed has gotten better. 5.0 widget editor performance was bad to say the least; updating a complex widget would take sometimes up to 20 seconds
Thank you for the understanding. I guess everyone is kinda of in the same boat. Reading through some other posts, it seems like some people are getting 120+ fps and other people are getting below 20 or less. I know there are a ton of variables that go into what could make fps tank or skyrocket, but its the same as troubleshooting anything else i guess. If fps is high in one high octane application and low in the other, its probably not the machine, but the application itself. Honestly, i love developing in UE and even though my fps goes to 20 just adding a few things to a scene, i guess it is still manageable. I wonder if the fps in editor is indicative of how the packaged game performs tho.
Simplified, most of UE5’s new features are not suitable for production.
For years, Epic has been focusing on marketing and has totally disregarded the technical aspect.
Yes i can see this in just about every press release. I feel like i used to see a lot more “epic” in these thread, paying attention to what isn’t working. more and more it seems like folks are just relying on each other.
If you change the DX12 rendering setting.remember when it compiled shaders and everything stabled. press Ctrl+shift +s to save all before do anything thing.otherwise it will compile shaders again next time you open the project. I met the issue recently.and that’s how I solve it.
honestly, your specs are about 20 to 30% better than mine so this is weird. iv got a 1070ti, and 2700x, 32 gigs of ram.
what about disabling plugins? disable everything except the features you need and see if that helps. i disable huge amounts of plugins by default (about 2/3), and that might be why my performance is better than yours, even with a weaker system.
if that doesnt work, you could also try building from the source. i think iv noticed better performance using source vs prebuilt, tho that could just be placebo.
warning, this will take about 2 hours with your cpu (maybe more, cant remember off the top of my head), so make dinner and come back to later.
Do you run anything in the background? 5.2 up run slowly for me when I have Photoshop open - sometimes the Epic launcher being open slows it down too. Closing them immediately brings the frame-rate up.
Also - try playing the level as “Stand-Alone Game” and see if that’s any better.
Yes just closed out everything. I usually run a browser to watch vids but closing it out has no impact. Its the same.
I was talking to a friend of mine earlier today that says he gets 50-60 fps in his fully built games in editor and his specs are less than mine. I am lucky to get 20 fps sometimes. Such a weird issue!
Im going to start with disabling plugins and then go with the source idea if that doesnt help. Honestly, i font really know what plugins the system need in order to do certain things, but i know i only use one plugin from the marketplace. Are there any plugins you know of that i probably should not disable?
After doing some crazy research, Running Stat unitgraph shows my “frame” and “game” as the culprits. Gpu actually looks great so I think I’m cpu bound. I ran a start file and stop file and it like under game thread, slate and tick time are the primary issue. I’m starting some investigation on this but everything I’m seeing is pointing to UMG? It’s strange to me that UMG would be a problems when I’m not even running the game.
