1. Start up game using 64 bit exe
2. Begin play as normal
I use MSI Afterburner to monitor CPU/GPU Temps, FPS and GPU Usage.
3. Experience the 1 FPS Bug (Conditions as to why this happens are unknown to me)
4. Experience severe lag, stuttering and effectively 1 FPS. I distinctly notice that the game is no longer using the video card as usage is noted at 0%.
5. After approximately 2-4 minutes the game finally recovers.
6. Begin to play again, continuing to loot up.
7. Notice that Video card usage was markedly down with usage ranging from 55-65% typically and maxing out at ~84%. The subsequent FPS rates were effectively halved compared to FPS rate prior to the 1 FPS Bug. (Prior to the 1 FPS Bug video card usage was maxed at 100% and temps were steady at 65-70 deg C).
8. I proceeded to run around a bit to see if I could drive the Video Card usage back up to 100% without any luck.
9. Edit: Tried again last night using the 64 bit exe. I had the same issue occur however the GPU functionality decreased after what i believe was a series of Alt-Tabs in and out of the game to get my mouse working.
10. Edit: Also, I created a new profile under the Nvidia Control panel for the 64 bit exe. I wanted to see if this fixed the issue. Upon starting the game the GPU automatically was under utilised. Removing the profile and simply using the previously defined DayZ profile resulted in same issue described above (ie worked for a while).