There are two things that can be done:
1. Configure McAfee AV agent to not scan the files with the .vsi and .vsm extensions. or Have the VSE running in an environment where McAfee AV is not available.
OR
2. Timeout can be caused by some delays when deploying a large VSI.
If that is the case you can add the following property to the Workstation's local.properties file and restart: