Please create a thread on our official feedback6 channel and up vote the feature request.
As erich_197 said, there are several requests about litespeed on the feedback site. However, the feedback page has become unusable. It is full of spam. Affiliates posts are everywhere and hasnt been updated for ages. There are ideas marked as planned or working that have been released months ago.
As for litespeed now. There are many tests out there about Litespeed performance. It is more than 10x times faster than Apache and can handle far more requests. Its not just an improvement, but an enormous improvement.
Let’s say that you don’t care about the current user base. It will be a great selling point for new customers. Litespeed has become more and more popular and you can find out there Cloudways alternatives offering just Litespeed. You need to hit that market before it’s too late.
Please consider it and let us know if there is a reason to NOT implement Litespeed in the foreseeable future. We should plan accordingly.