更新

wechat_rpa/session_name.py

@@ -131,7 +131,15 @@ class NameReader:
             try:
                 from rapidocr_onnxruntime import RapidOCR
 
-                self._engine = RapidOCR()
+                try:
+                    # onnxruntime 默认按核数开满线程池且空转抢 CPU。识别的
+                    # 都是几十像素高的小裁片，两个线程绰绰有余；不限的话
+                    # 低配机每轮轮询都会被 OCR 抖一下。
+                    self._engine = RapidOCR(
+                        intra_op_num_threads=2, inter_op_num_threads=1
+                    )
+                except Exception:
+                    self._engine = RapidOCR()
             except Exception as exc:
                 self._engine_failed = True
                 print(f"    [身份] OCR 引擎不可用，无法读取会话昵称: {exc}")