Website loads really slow on bad wifi connection.

[bkfirmen]

Describe the bug
The Memoriter homepage loads really slowly, when the wifi connection is bad like f. e. in trains. Even a heavy site like github loads faster. I would assume that this is caused by some big, heavy graphics.

Steps to reproduce the behavior:

1. Go to a place with a really bad wifi connection.
2. Let the main website load! (for example: https://memoriter.de/blog/)
3. Feel the pain

Expected behavior
In a bad wifi condition pictures with a lower resolution should be rendered.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Archlinux (EndeavourOS) (Kernel Version: Linux 6.11.9-arch1-1)
• Browser: Firefox 132.0.2

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.