Any camera needs light and contrast to focus. If you are short of either of those the harder it is for the camera to focus on an object. To fix this you either increase the light hitting the sensor, either by using a lens with a larger aperture (a 50 1.8 let’s in around 12 times as much light than the kit lens at 45mm), or increasing light on the subject, or finding a spot with more contrast.

Now the M10 isn’t the best focusing camera, but when taking night photos you can always zoom in and focus manually to achieve better focus. if there is a bright point in the scene you can use that as your focusing point instead of your actual subject if they are on the same focal plane. Using a tripod and the self timer to avoid any shake are good things to do as well.