Improve voice command processing latency

[LourenzBani]

Problem

The application takes a noticeable amount of time to process spoken instructions before generating a route.

Current Behavior

• User provides voice input.
• Processing delay is long enough to affect usability while driving.
• Route generation and response feel slow.

Expected Behavior

• Voice commands should be processed with minimal delay.
• Route generation should occur within a reasonable response time for real-time navigation.

Investigation Areas

• Speech-to-text processing
• LLM/NLP processing
• API response times
• Route generation workflow
• Database lookups