How to solve the problem with NFT 50ms at current RT 150ms + 350ms? Suggest an architectural solution.

If the current RT (response time) totals 150ms + 350ms = 500ms, and the required NFT (maximum response time) is 50ms, then it is necessary to radically reduce delays. Architectural solutions may include:

1. Asynchrony and parallelism: divide the processing chain into independent parts, execute them in parallel to reduce total time.

2. Caching: use caching for frequently requested data to avoid performing long operations each time.

3. Preprocessing: perform part of the work in advance so that the ready result is available upon request.

4. Use of queues and events: instead of synchronous calls, use event-driven architecture where requests are processed in the background, and the client receives a quick response.

5. Optimization of bottlenecks: profile and optimize the longest operations, possibly replacing slow components.

6. Microservices and sharding: split the system into smaller services to reduce the response time of each.

Example architecture:

• Client sends a request
• Fast service returns a cached or pre-prepared response (<=50ms)
• Background system updates data asynchronously

Thus, it is possible to ensure an NFT of 50ms through asynchronous processing and caching, rather than waiting for all operations to complete with a total RT of 500ms.