Precision Fluctuation Doubt of GroundingDINO Fine-tuned with Industry Data vs YOLOv8 in mAP0.5 - 0.95，微调精度不如yoloV8？

[BruceWang1996]

I fine-tuned GroundingDINO with my own industry data. In some scenarios, map0.5-0.95 better than YOLOv8, while in others map0.5-0.95 is more than 5 percentage points lower. Has anyone encountered such a problem?
我用行业数据微调groundingdino，有些场景精度比yolov8有提升，有些比yolov8要低，主要是map0.5-0.95低很多。有人遇到这种问题吗？