I'm freaking out because I gotta finish this React dashboard by midnight and I'm trying to squeeze every bit of logic out of DeepSeek V4 Flash. I'm torn between using a super short prompt like - be concise and skip explanations - versus this massive 500-word system prompt I found on GitHub that lists every possible coding rule. The long one seems more accurate but man it makes the latency go way up and I'm on a ticking clock here. Which one actually keeps the code quality high without making the model hallucinate imports? I'm mostly doing heavy state management stuff for a client and I really can't afford to debug silly mistakes right now. Any advice on which style works best for the V4 flash specifically?