1.Download IDM Optimizer Tool
2.Now make sure IDM is installed on your PC, as this tool will only optimize IDM if its physically present on your system.
3.Now just fire up your IDM Optimizer and than you will see window like above just click on Maximize Now and you will get a note asking you to restart your IDM do that and once restart your PC.
4.That’s it now your IDM is boosted with speed, try to download any file and check out if speeds are good or not.
5.If you want to restore your default settings than you can click on Restore Default.