It would be awesome to not have each attached image opening up in the same tab or a new tab. If you are not running pro I would be happy to make a donation to help pay for it. $10-$20 to not have to be clicking back or over to new tabs would well worth it.
That is something I had not seen. I am hesitant to add anymore plugins right now as we are straining the my hosting package again. When it comes time to update I will keep this in mind.
I always insert my images into the content so others don’t have to click. But I think they are still maybe clickable? Here’s a test (gonna do a life size carving of this one day).
I manage a half dozen websites running on WP as a side gig and a rather large e-commerce site (non-wp) as a day job. I am by no means an expert, but I know my way around and might be able to help squeeze a little more out of your current host.