ChartModule displaying wrong steps with fps=0 (Update)

[homeworksubmission]

Describe the bug
The steps label in a generated chart starts to display wrong labels when pausing. E.g. It might display steps 3+ when the model is still computing step 1 (as seen from the python console). It also often displays repeated labels such as below.

Expected behavior
The chart should display the correct labels.

To Reproduce
Set the fps to 0 and then pause the module after awhile. The issue can be consistently reproduced.

Additional context
Setting the fps to 0 is to let the module run as fast as possible. This trick was mentioned by one of the other members and appears to work with SimpleCanvas and BarChart as far as I can tell from my own testing. On a related note, is there a simple way to modify the FPS beyond 20 without directly editing the library files?

[homeworksubmission]

This issue appears occur when using continuous grid. It can be replicated in the boid_flockers model but not in the wolf sheep model.