Categories pages and views are not scalable

[fais3000]

I'm not sure if it is a bug or improvement. The Topic/Posts queries and views are highly optimized to show massive amount of data, however the categories views are lacking in this area. We have a movies discussion forum where we create a category for every celebrity and artist whom users want to discuss. After a certain number these pages become incredibly slow to load.

As seen here https://discussimdb.com/category/4/celebrities

Do you guys have any tips on how this can be improved?

@Staff