Report generation is slow when dealing with large amounts of network nodes

**Describe the bug**
The report is slow to generate when large amounts (>30) of machines are involved.

**To Reproduce**
Steps to reproduce the behavior:
1. Configure the Monkey with creds for 30+ machines
2. Run the monkey in a network with said 30+ machines
3. Access the report page

**Expected behavior**
Report should always return very fast. 