I am working on a game being developed in Unreal 5.1 . Currently there is a lot of optimisation to do, and the game is running at between 20-25fps when running in PIE. I have noticed that in Editor the game suffers from serious Input buffering and latency issues. The more Inputs that are active (i.e being pressed) the more noticeable the issues. When playing on a cooked build outside of PIE the input latency/buffering does not occur.
I have run an experiment using the starter “ThirdPersonCharacter” tutorial map using an unmodified Unreal 5.1 engine. If I set the frame rate to 10, using the console command “t.maxfps 10” then move forward, and move the mouse about for 10 seconds, then the Inputs are massively buffered and are still being processed for a good 5+ seconds after I let go of the controls. I have tried this with both the enhanced and the original Input methods, and both produce the same result.
However if I open an unmodified version of Unreal 4.26 and do the same thing on the “ThirdPersonCharacter” tutorial map, then the inputs do not buffer and remain responsive regardless of how low the frame rate is set.
Are there any settings or anything else I could try to make the game input work in Editor as it does in Unreal 4.26?. Having sluggish input is making it hard for our designers to tweak camera and movement values as what they are playing is not representative of what the final game will play like.