I'm guessing the GP's scheduled jobs are running within Salesforce, probably Apex. I'd note that I've seen inconsistent async processing delays even in EE and UE clients. First of all, I'm pretty sure everyone is on shared infrastructure, and second, the delay is at least in part relative to the amount of recent processing.
Yeah definitely agree, we had to rework our logic for these cases. We've worked with ~4 Million row objects. In general with our polling strategy syncs, the problem was more the size of each record. So a table with 1M rows but 400 fields was way more problematic than 2M of just 5 fields.
