EIC does not provide a capability to terminate a job via UI or via API. Anyhow, for provisioning there is a concept called Provisioning Threshold which can be defined at the respective Security System.
The provisioning threshold is a value set on the application level to restrict processing tasks if the number of tasks exceeds the configured provisioning threshold.
Please see if this workaround post is helpful since there is no option to set the Timeout capacity at the Provisioning Job Level.
For further information, please visit this link: https://documenter.getpostman.com/view/20052500/2s93RQUa2t#a354c9a5-4b6c-4a72-b0a9-f6be6680bc85