Student or Learner
Hi, What does it mean? :
The client part (Company B) find it difficult to "keep up with the pace", especially because for them Risk
Management and security are important issues. As a result communication bottlenecks occur.
not a teacher
You have given some context, but not quite enough for us to give a very specific answer in this case.
However, in general terms, it appears to say that Company B has a complex process by which it does business, and this means that it is not able to proceed with matters as quickly as the company/companies working with it would like.
Here, "to keep up with the pace" = to move as quickly as the business requires.