✅ Enable JVM tuning with proper heap size, GC settings, and profiling. ✅ Reduce object creation; reuse objects when possible. ✅ Use StringBuilder instead of string concatenation in loops. ✅ Cache frequently used data to avoid repeated computation or DB calls. ✅ Optimize database queries with indexing and pagination. ✅ Use async processing (CompletableFuture, Executors) for non-blocking tasks. ✅ Avoid synchronized blocks unless truly needed. ✅ Use connection pooling for faster DB access. ✅ Profil