Set Above Normal Processes

We all know you can change the process level by going through Task Manager and selecting the file we want to have a higher process and tell it to do so. Problem I have to do it each time I use the program! Is there a way to set the priority level once so that I don’t have to change it to be at a higher priority? Downloadable program? Registry edit? I’ve got several programs I want to run faster and some I want to run slower.