In terms of slowness, no.
In terms of showing games, yes.

I'm looking through categories of games by type, i scroll all the way down to see new and recent releases, the only tabs they have now is "Popular Upcoming" and "Upcoming"

It used to have "New and popular releases", "Recent Releases", "Top Rated", and i'm positive there was one more that i cannot remember off the top of my head, alongside only "Upcoming".

Steam has clearly buggered something up somewhere and has ruined (to a degree) the store pages.

Some friends think its Cloudflare messing up, which effects many online markets/platforms, but i cannot confirm that.

I'm having the same issue with the tabs as well.

This problem is serious for me, almost all pictures of store page takes ages to load. What is causing the slow loading?