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Low Light Street Photography.
If you're not vacationing in summer, you can experience fewer hours of daylight. It's either put the camera away or turn to low light and nighttime imagery.
Since most photos are displayed on a computer or smart phone, a lower image quality due to a high Sensitivity setting isn't catastrophic.
However, adjustments in Lightroom can dramatically reduce noise, grain or artifact. Try: Details > Noise Reduction > Luminance set at about 40.