Frequent application 'pauses'

Hi,
I have an annoying problem that only shows in Fusion. I'm on Windows 10 with Nvidia K6000 and Titan-X and a Wacom. I can have an empty comp with on a BG node and set it playing. Every 30 seconds or so (not strictly regular but around that sort of interval) the app will freeze for 3 seconds or so and then carry on.
Of course the scenario above is just to prove a point but during operation it is very frustrating and i'm struggling to find a cause. I read on Steakunderwater about turning off V-Sync in the tweaks preferences but that didn't help...
CPU doesn't seem to spike and I have plenty of memory. Any ideas gratefully received!
Paul
I have an annoying problem that only shows in Fusion. I'm on Windows 10 with Nvidia K6000 and Titan-X and a Wacom. I can have an empty comp with on a BG node and set it playing. Every 30 seconds or so (not strictly regular but around that sort of interval) the app will freeze for 3 seconds or so and then carry on.
Of course the scenario above is just to prove a point but during operation it is very frustrating and i'm struggling to find a cause. I read on Steakunderwater about turning off V-Sync in the tweaks preferences but that didn't help...
CPU doesn't seem to spike and I have plenty of memory. Any ideas gratefully received!
Paul