End Note X8 demanding 50% CPU

I have just installed EndNote X8 on my MacBook Pro, running Mac OS version 10.11.6 and Word for Mac, version 15.28.

After installing the software and word plugin,CPU goes to 50-60% after typing any word on a blank page. Any ide why? 50-60% CPU makes EndNote an unusable piece of crap on a fairly new computer. Please fix this soon, or tell nagivate me through uninstall process.   


Dear MKB,

Sorry about that. Where is your EndNote library located? Is it on the local computer, a network location or a cloud folder such as dropbox? Also, CPU usage would increase if you have more than one EndNote library open at a time.