Not all adapters are equal. To avoid driver hell on future Windows 11 updates:
Run mode comX (replace X with your COM number) in Command Prompt. Ideally, latency should be 1 or 2 ms. If you see 16 ms, you may need to adjust buffer settings in Device Manager → COM Port → Properties → Port Settings → Advanced → Lower BM and RX buffers to 1. usb to ttl driver windows 11 upd