Correction of the previous post: In the last paragraph, I wrote “events per minute”. It should say “events per second”.

Just to clarify: the rate of SimConnect events caused by CLS2Sim and logged by FSUIPC in my experiment was 60,000 events/min = 1000 events/s.

Even considering that the yoke is supposed to act and react without the user perceiving any latency, this feels excessive considering the limited number of datarefs CLS2Sim actually needs to read and update at a high rate. And since, on the sim’s side, the SimConnect API appears to be part of the “main code” that needs to run in the main thread of the application (ie. as part of the code that runs on the infamous first core which is always at 100% usage for most simmers), this appears to have a performance impact which is especially noticeable (e.g. as “micro stuttering”) when other SimConnect applications enter the equation.


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