The OIC SFDC adapter also supports Salesforce Streaming API, something I've never tried out, until now that is. The Streaming API works on the basis of Platform Events e.g. new SFDC account created. Think of it this way - as soon as a new SFDC account is created, push it to the SFDC event bus. OIC will pick it up from there.
If you're not the SFDC expert, then I suggest you check out the Platform Events docs here