hikvision camera lag problem,How can I eliminate lag?

Question

I use Hikvision DS-2CD1047G0-LUF 4 Mp brand IP camera to process the image with OpenCV, but the image has a delay of 1-2 seconds.

import cv2
 
cap = cv2.VideoCapture("rtsp://admin:[email protected]/1")
# IP kamerası RTSP URL'si

 
while True:
    ret, frame = cap.read()
    if not ret:
        break
    cv2.imshow("IPCam", frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

By the way, there is no lag in hikvision's web browser.

I tried changing the settings in hikvision's configure section. I lowered the resolution and set it to UDP but it didn't work.