During the creation of packages on Package and Deployment while adding items to your package, the CPU utilizations goes to 100% and takes a long time to complete.
Make sure that your deploying server is configured to run with more than 1 Virtual Processor. If it can't run more than 1 thread at a time, it will comsume 100% CPU and can take a long time to complete.
You can also try and lower the thread priority of the Package and Deployment client in Task Manager.
Alternatively, you can deploy from a different client that has multiple processors.
Use the following link for the recommended Server Specifications: