The EPOComputerPropsStaging is a temporary table in ePO database. The ePO server and Agent Handler receive the agent system properties data and send it to this table.
Once processed by EPO_ComputerPropsStagingFlush, the data moves from the EPOComputerPropsStaging table.to the EPOComputerProperties table, where the processed data is then stored.

The deadlocks can occur because of backlog of records to process or long execution times in the EPOComputerPropsStaging table.