Yep, we'll be seeing some of the new stuff in the core pop up in the C4D version. For those specific issues you mention, especially crashes, do you flag us with those via a ticket or forum post? E.g. for the crashes, seeing the bug report.txt is always enormously helpful. For scenes where things seem to be slower than they should, having THAT scene by private uploader is super helpful (because anything we create here may not have the one key thing about your scene that is having an impact). We know it takes time to report each issue separately, and give things like the scenes, bug report.txts etc, but without them we may never be able to replicate what you are experiencing so never be able to fix it.
If you have reported those in tickets and forum posts, feel free to add links to those here if you feel they were sent in a while back but haven't been followed up on!