I'm having this exact same issue. My system is not slow, it's the application. Below are a minimal list of my specs:
- Intel Core i7-5930K
- 32GB Corsair Vengeance
- 250GB Samsung 850 EVO SSD
- EVGA GTX 980 Superclocked
- Windows 8.1 x64 Professional
That is my main system and I cannot get Fences to load within 5 minutes of startup. I'm constantly forced to create a new fence and delete it to re-enable the desktop. I can also go into the settings and disable, then enable Fences to get it to work as well. Both are an inconvenience. But considering that I never shut down my main system, I rarely have to deal with it. However, on my main work laptop, I'm having the exact same issue. So here's my work laptop's specs if they help:
- Intel Core i5-4310M
- 8GB DDR3 RAM
- 120GB Samsung 840 EVO SSD
- Windows 8.1 x64 Professional
As you can see, both systems should have zero trouble booting up with no lag. I've tried to set the process to high-priority on startup, I've tried optimizing boot to load only the bare essentials AND Fences. Nothing works until I create a new Fence and delete it. I hope this info helps and I hope we'll have an update soon that fixes this issue.