Occasionally SysMetrix uses a lot of CPU time – is that normal?
Generally speaking, no. The CPU load should be very low, but keep in mind that some themes may be very elaborate and force SysMetrix to do a lot of work to display the information. However, if your CPU usage is high try looking at the contents of your recycle bin. The Windows API call that SysMetrix uses to query the recycle bin can consume a lot of CPU time if your recycle bin has either a lot of files or is rather full (on the order of hundreds of megabytes). The best cure for this is to simply empty your recycle bin.