Start eSword and wait until it has gone past the splash screen and is ready to use.
Start "Task Manager" by either right-clicking the 'Start' button, a blank area on your Task Bar, or ask Cortana.
When Task Manager opens you will see eSword listed. Right-click on eSword and choose "Go to details". The window for Task Manager will change and again you will see eSword.
Once more, right-click on eSword and then choose "Set priority", which in turn will give you five options.Choose "High" and then go back to the eSword program to check on its performance. Windows will tell you in a little dialogue box about the possibility of instability, etc, but I've never had an issue. Besides, when you close eSword and run it again it's reverted to normal performance levels.
I've even run it on "Real. time" when I've had no other programs running and didn't have any issues. Try it on other programs that are a little on the slow side.
Edited by BigPaw, 16 March 2017 - 07:31 AM.