Personally it’s not that it’s slow, it just holds on to weird patterns for way too long, kinda like how new outlook just feels like old outlook with a new skin. Whenever I open edge, it loads. Whenever I open firefox, it’s the “Firefox is installing updates” window that’s probably been there since the 90s. Refusing to honor the ‘close multiple tabs’ etc. It’s minor stuff but when there’s an objectively better way to do things, it’s just annoying.
Others have said it better but sorry that you had to experience that
If lemmy doesn’t support expanding remote hosted images from platforms like imgur or whatever that’s probably a good feature to look for in a new platform. If it does, things are obviously getting to a point where you need to reduce what you need to worry about, to help focus on moderation and keeping things running. Block listing urls is easier than running and hoping on an ai.
Otherwise I think disabling images or giving the ability only to financial supporters or strongly verified accounts via upvote counts, number of reputable or discussed posts, or and age of account are the only sane moves.
Personally I don’t mind clicking through for an image if it interests me.