System Information

macOS M2
OpenCV 4.7.0 and 4.8.0
python

Detailed description

mediapipe palm detection model from OpenCV zoo show the inference time is double than the 4.7.0 version.
reference: https://github.com/opencv/opencv_zoo/pull/190/files#r1252471348

Model file: https://github.com/opencv/opencv_zoo/blob/main/models/palm_detection_mediapipe/palm_detection_mediapipe_2023feb.onnx
Layer by Layer performance test results:
palm_4.7.txt
palm_4.8.txt

depth wise convolution inference time is 3 times than 4.7.0 version.

Steps to reproduce

just run benchmark in OpenCV zoo

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)