The ownCloud sync client for OS X pins one cpu core to 100% usage on my fairly new i7 mbp, which effectively drains the battery quite quickly if you don't notice.
Then it also seems to do a full scan of teh entire folder each time it sync's, if you then have for example your iPhoto library (usually a few GBs) there, the sync process will consume lots of CPU and tend to be out of date across devices.
Then it also seems to do a full scan of teh entire folder each time it sync's, if you then have for example your iPhoto library (usually a few GBs) there, the sync process will consume lots of CPU and tend to be out of date across devices.