Check your power management settings and ensure they are set to high performance rather than Balanced or some other conservative settings.
Utilization though is a different story. Less utilization means that there are fewer things eating up CPU cycles and there are fewer processes running at the same time. Windows 10 actually runs far more efficiently than Windows 7 or even Windows 8 did, and far better than XP, Vista, or Windows 2000. The reason is the code has been refined so that underlying system components aren't using up resources that can be used by your programs.
Programs themselves will use up your system's resources and sometimes bog the system down and hang it. If you are running Trainz for example, TS12 for that matter, you would see Trainz.exe, TADDaemon, and occasionally TrainzUtil come in. This is the basic program running and represent only three processes. There are numerous other system processes that kick often including antivirus checkers, updaters, your DWM or windows manager, task management, schedulers, and many other system background processes, to mention.
What you don't want to see is a lot of utilization all the time. If this is happening, this means there is something grabbing and hogging a big number of resources, and viruses are known to do this as they sit their eating up your memory and CPU time stealing information and ruining the performance.
If you want a really good view of what's running on your system, download Process Explorer from Microsoft's TechNet. This will show you what's running, and the different sub-parts that are attached and running as part of a larger process.
https://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
John
