(OpenRailway)Map loading very slowly/only when interacted with

[rugk]

Describe the bug
The default map is loading very slowly or only when one interacts with it.

To Reproduce
Open any checkin.

screen-20240315-102409.mp4

What happens, is, the map is loading very slowly or only when one interacts with it like dragging or dropping or zooming.
The tiles seem to be cached, so same checkins/same locations load faster on further requests, but the inital loading is still slow. Much slower than on https://www.openrailwaymap.org/.

This was tested in wifi.

Expected behavior
Map should load much faster.
Also it should load all tiles, not only when I interact with them.

Screenshots
see above

Smartphone (please complete the following information):
Device: Fairphone 4 (FP4)
OS: Android 14, CalyxOS 5.4.1
source: F-Droid
version: v 2.7.0
Build-ID: UQ1A.240205.004.24504010

Additional context
I use the default map setting (infrastructure, railway etc.).

Don't wonder about the shown example, this is a bug of Traewelling (see Traewelling/traewelling#2403).

[rugk]

Yeah this often ends with some tiles being loaded and some not.