We had this issue and adjusted the min pacer sleep time to 100ms to make 10 transactions per second.
There was a post earlier and I checked my own API settings and those API quotas have been upgraded without me asking. I'd assume that's the same for majority of folks?
Any other Google Drive users can check there quota page and validate it's up to 10,000 per 100 seconds which means we should adjust the min sleep time from 100ms to 10ms since we have more capacity now.
I've noticed a significant performance improvement with making that change on my tests and will run that way for a few days to see.
I see this now in my page and I've never requested an increase.