Enhanced Serial Monitor - Version 3.1.3 UPDATE

Good morning, I am from Colombia, and I am in a project that consists of graphing signals from pressure, flow, temperature sensors, among others.

It is necessary to have a sampling frequency of at least 20 milliseconds, so far I have only been able to make measurements to more than 60 milliseconds, but it is necessary to decrease that value. When I try to lower the frequency, the program closes.

I don't know how to solve that problem in my project, and I would love to be able to guide you with your proposal.

Thank you very much for your attention.
When under 30 milliseconds, the SerialPortDataRecived generates error. "Modified collection enumeration operation cannot be executed."

Sorry for my English, I'm still learning.