WARNING Couldn't measure a consistent frame rate. Crashes

Hello, we are having issues with our stimulus running on a PC. It may be due to the graphics card as it seems to work on other PCs. Below is the full error message. Note that we have set the card to sync to vertical. I am also attaching a graph output of the timebyFrames.py output. Any help would be greatly appreciated.

############# Running: C:\Users\skatyal\Desktop\medSoVT\MedSoVT.py #############
pyo version 0.8.0 (uses single precision)
6.8260 	WARNING 	Couldn't measure a consistent frame rate.
  - Is your graphics card set to sync to vertical blank?
  - Are you running other processes on your computer?

7.0686 	WARNING 	t of last frame was 24.44ms (=1/40)
7.1779 	WARNING 	t of last frame was 24.47ms (=1/40)
7.2870 	WARNING 	t of last frame was 24.47ms (=1/40)
7.4117 	WARNING 	t of last frame was 23.15ms (=1/43)
7.5211 	WARNING 	Multiple dropped frames have occurred - I'll stop bothering you about them!
8.8197 	WARNING 	Couldn't measure a consistent frame rate.
  - Is your graphics card set to sync to vertical blank?
  - Are you running other processes on your computer?

9.1568 	WARNING 	psychopy.sound.initPyo could not find microphone hardware; recording not available

Hello,
I have similar issues, although the experiment is extremely short. Did you find a solution to the problem?