服务降级RT策略,可否实现设置一个响应时间，接口响应时间大于设置的值马上就快速熔断，而不是计算平均值再进行熔断处理

## Issue Description

服务降级RT策略,可否实现设置一个响应时间，接口响应时间大于设置的值马上就快速熔断，而不是计算平均值再进行熔断处理

### Describe what happened (or what feature you want)
通过设置一个响应时间，接口的响应时间大于该值服务马上就快速熔断，而不是计算平均值再进行熔断处理

### Describe what you expected to happen

### How to reproduce it (as minimally and precisely as possible)

### Tell us your environment
no

### Anything else we need to know?

no

The issue names no files, tests, or entry points. Start by locating the existing service-degradation RT strategy and its circuit-breaking behavior, then clarify the configuration and acceptance criteria before changing it. Done means the requested response-time threshold behavior is implemented and covered by tests.

Written by the indexing model from the issue text.