Hello,
I have been running NextCloud since last few months. I am sharing my own views and experience with this setup about this slowness.
My setup details,
Hardware :- Acer Laptop (Intel Pentium Quad Core N3530 @ 2.14 Ghz, 2x2 4GB DDR3L, 500GB HDD, Gigabit RJ45)
Software :- Ubuntu 20 LTS (Up-to-date), Snap NextCloud, NoIP DDNS Client)
With NC 22, Web Page loading was in heavier side but never felt too slow for usability. However, as I write here in this thread → High CPU Usage NextCloud 22.2.0 (snap) on Ubuntu 20 LTS setup in general felt inadequate with my choice of CPU.
Just a day ago, snap team dropped the 23 update and webpage load feels much faster and snappier than previous 22 era with the same hardware and operational scenario.
Thanks.