Plan a load test
Back3. What that would mean
One pass takes
4.308s
median of 8 past run(s)
Projected passes
417
41.7/min
Each user does
139
passes in the window
about 417 passes if the application keeps up at 4.3s each; fewer means it slowed down, which is the result you are looking for
This machine: 15.8 GB RAM and 4 CPU(s): ~400 MB per browser leaves room for about 12 at once.