UE 5.5.3 Terrible Performance

Development Programming & Scripting Blueprint
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1

I have just updated to 5.5.3 and I created an empty level with only a car I was working on. The car is extremely basic and all it does is apply a suspension force to the car, nothing else. I can never get above 60fps and often sit around 30 - 40 fps. It is also extremely stuttery dropping frames every 0.5 seconds. Is all of this just a bug or can it be fixed?

I have a pretty beefy 3080ti gaming laptop that never struggles with UE but since the update, it is unusable.

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This is the whole level with nothing in.

2

Yep. I don’t believe it either. It’s unreal, isn’t it?

3

Is this a new project or simply a new level from existing project (which was 5.5.2)?
Try first creating a new project and see whether you get the same symptom.

4

It’s is a new project with almost nothing in but the default content