We had really interesting discussions within the team to try to find out which options were out there, being used by other people, and whether those solutions could be useful (and possible) for us.
There is a range of solutions and opinions on this matter, but ultimately it’s all down to the content and types of images your website actually has to handle, and the technical and resource limitations of your team.
We tried to keep an open mind as to what would be possible to achieve within a very small timeframe: we wanted to find a solution that would work for our content, that would be achievable within our deadlines, and obviously, that would improve the experience of the visitors to our site.