I tested your character and it appears to be working as expected. A 1-second response time isn’t realistically achievable at this point, average response times typically range between 3 to 4 seconds, which is considered normal.
There is currently no difference in response speed or processing priority between plans (Indie, Pro, Business). However, we are working on a major update aimed at significantly reducing response latency. Early access to this update will be available through our Enterprise plan.