I usually use Lemmy at my smartphone with 4G that was released 3 years ago, I’m happy with it, and I don’t need other one more new and expensive.
The area of 4G is very congested, then the connection is slower in peak hours.
Only rich people has last medium and high end smartphone with 5G, and live in area with that coverage.
I live now in downtown, and just got slow fiber connection 3 months ago, there are a lot buildings with only ADSL in this area, and it’s the capital.
Maybe you are lucky, with good connection.
Is not so hard to optimize the image for everyone in the world, and maybe put a link to original big image of you want.
There’s a lot of ways to optimize, like changing resolution, reduce colors, clean image. And compression, using webp lossy 95% you got a very small file that looks very close to the original, usually got less than 1MB.
Today’s web is very bloated for no reason, and very slow in old computers. Browsers are the main RAM eaters.