Hi @Eric68,
Yes, the Basic ESC does have a low pass filter on the response to input, as governed by the “Startup Power” setting in the BlHeli_S firmware, we set it to 50% by default:
You could change this to the maximum 100% to reduce this behavior, but there may still be some filtering present at this setting. For more information, I would recommend delving into the manual, code, or reaching out to the author.
I would like to note that reducing the response time/ramping will significantly increase the stress on the thrusters, and may lead to a reduced lifespan.
-Adam