It is very hard to answer your question as I literally have no
information about CGP helpers. You can try to watch system calls
executed by helper (by using strace -p <helper_pid>) or try to examine
CGP logs for potential errors. In theory, helper uses `libev` for
processing parallel request which should be much better than forking
that is used by SA helper. But, again, I don't have any details to
provide more information.