Difference in atmospheric correction between resolutions?

When I visualize the scatter plot between the bands in the 1C and the 2A products, it is basically a straight line, especially at 20m and 10m resolution. At 60m resolution, there is more scatter, for bands 2, 3 and 4. For band 8, I again get strong correlation. Can anybody explain the differences between the resolutions? Is the atmospheric correction performed differently at these different resolutions?

Hi, need this answers . (What is the difference between resolutions?) You know it now? please