Why does WD Drive Service (32 bit) take over 90% cpu on i7 4Ghz 32GB?


I have 1TB WD Blue SSD and 2 8GB easystore drives (+sandisk 1TB SSD + 3TB toshiba) on a i78700k system, 32GB ram. Why would WD Drive Service take 95% CPU? I think it is too often slowing system. What does WD Drive Service or WD Drive Manager do?