ExperienceChatMain and TopBar are causing lag in our game

[Crazyblox]

Hi, are you able to provide further information regarding the LuaApp’s React Scheduler for the Home Page still being active while in experience since that is also costing ~30ms when spiking?

I’ve created a report, and tried to get an answer twice from the relevant threads posted by the Roblox team.

Attempts for response:

Providing You More Control and Better Performance

Great to see action being taken regarding the performance of this. While you mention in-experience UI, will you also be addressing Roblox App’s Home Page incurring React scheduler frametime spikes despite being in-experience and user context not requiring it?

Improvements to Experience Chat Performance

This is pretty valid; I’ve seen a lot of responses from staff taking care of this issue in particular and can say that the time taken to process chat is reduced. Thanks for optimising this. Hopefully these optimisations can be replicated in other react-lua spaces, such as the Roblox app landing page updating whilst in-experience costing up to 30ms per frame despite user context not requiring it. I have gone through the effort of defining a repro for you guys to follow.

Link to Bug Report:

Frametime spikes decimating FPS by 5x

Frametime spikes originating from Roblox-created scripts are decimating my frame rate across every single experience across the entire platform. This issue is universal and can be applied to any hardware configuration and every experience regardless of developer-included content due to the performance issues originating from Roblox’s own internal scripts. The bottleneck is single-threaded. I have among the world’s fastest CPU with regards to single-threaded performance (M4 Max). With that said…