I am using Bricks filter function 1.12.3 and ACPT to create this page https://www.golfzonhk.com/our-coaches . Besides it is a slow loading speed, when I try to use filter, it also need to take a long time to load the data. I am using wp fastest cache plugin and I have turn on ACPT cache.
it looks like the call to the server takes up to 7-10s, in my testing. But, it appears that it takes that much time waiting for the response - until then, the filters are disabled.
Do you see any debug logs in the backend, maybe? Can you check if your WordPress installation meets system requirements for Bricks: Requirements – Bricks Academy