May I suggest you read through the migration thread.
There are a lot of good tips and problems solving in there.
At the top of the scripts thred there is an darkAI section with info for Dark AI.
Lipsync has been covered and solutions given to complete.
Ragdoll has been descussed and refined. You will have to get one of the old betas to get the script file.
In my opinion the engine has given me the least problems when building a game. I have had level map up to 1.56gigs with stock and custom media in them. It even built multi levels game with two decent size levels without the issues I was having in 1.16
Download it a give it a try, You can always go back to 1.16 if you have issues.
Nothing but coffee in my veins