process speed issue

[JINGERGER]

what is the frequency of the output? I run it on a desktop with 4090GPU
zakuii@zakuii-ThinkStation-P3-Tower:~/ros2_ws$ ros2 topic hz /dual_fisheye/image
average rate: 1.901
min: 0.147s max: 1.207s std dev: 0.40436s window: 4
average rate: 4.537
min: 0.029s max: 1.207s std dev: 0.35072s window: 18
average rate: 4.818
min: 0.029s max: 1.207s std dev: 0.31662s window: 24
average rate: 4.005
min: 0.029s max: 1.261s std dev: 0.37264s window: 25
average rate: 3.247
min: 0.029s max: 1.764s std dev: 0.46722s window: 26
average rate: 3.651
min: 0.029s max: 1.764s std dev: 0.42925s window: 35
average rate: 4.080
min: 0.029s max: 1.764s std dev: 0.39264s window: 44