Still get FOUC on hero section using templates

Browser: Chrome Version 134.0.6998.89 (Official Build) (arm64)
OS: macOS / Windows / Linux / etc.
URL: https://orthosa.edynam.com/, Ankle and Foot | Treatments and Conditions | Orthopaedics SA & more
Video: Jam

In Bricks v12, I believe the team made an update to how the styles are loaded for templates in an attempt to reduce FOUC. However, I’m still getting quite it badly on my site. The site is quite highly dynamic with quite a few conditions, query loops, CPTs, ACF fields etc all being used but query monitor says that the queries themselves are not slow.

The page initial load time also takes around 2-3s which isn’t ideal either.

Any help is greatly appreciated!