Poor execution when use Hangfire under window service host net framework via Topshelf

[rahmatzadeh mofid]

Hi, I have a .Net framework 4.7 console app that calls different jobs via Hangfire, when I execute this app manually, it takes great performance in executing jobs, but when I start this app in windows service mode via Topshelf, CPU execution get 10% lower usage and my executing power is lower, What could be the problem?