Microsoft published a very useful article on how we can fine-tune Hyper-V Replica if we face performance problems. I suggest if to try changing these registry keys only if you face some performance problems. If everything is working smoothly better not touch them. The article is located here.
Dell Management Pack for SCOM provides a lot of features but if you do not use all these features you can cut some of them. In general you can make this MP lighter. All this explained in article “Making DELL management packs lighter for your management servers” by Daniele Grandini.