In the entrypoint, the sleep_sec=300 waits for the openshift-driver-toolkit-ctr to build the driver and checks every 300 seconds.
In an air-gapped environment where the driver is being compiled from scratch with local rpm repository, this takes about 180 seconds.
Decreasing the sleep_sec would significantly decrease the total time to deploy the MOFED container. (Assuming the total_retries should then be increased)