use all cpu cores

app.py

@@ -93,7 +93,7 @@ def update_llm(size, model_file, clip_file):
         mf, cf = ensure_weights(size, model_file, clip_file)
         handler = SmolVLM2ChatHandler(clip_model_path=cf, verbose=False)
         llm = Llama(model_path=mf, chat_handler=handler, n_ctx=1024,
-                    verbose=False, n_threads=min(2, os.cpu_count()))
+                    verbose=False, n_threads=max(2, os.cpu_count()))
         model_cache.update({'size': size, 'model_file': mf, 'clip_file': cf, 'llm': llm})
     return None  # no UI output