Twice the power, one-fourth the brightness. This is a basic law of optics. With lower powers, you see brighter, sharper images and cover a larger area. It's easier to find your target, vibration is less troublesome, and things usually look more detailed. Experienced telescope users know this, and usually use the lowest power available most of the time.
Higher powers are quite useful for viewing small and distant objects like planets and double stars.
Most observers have a selection of eyepieces to match the objects they are viewing. Powers over 100X are rarely used during daytime hours, because of problems with air turbulence. You know how professional observatories are always after bigger telescopes. That's because a telescope with a larger diameter can gather much more light, give a brighter image, and be useful at a higher magnification. For ordinary daytime terrestrial viewing, where lots of light is available, you really don't need a lot of aperture.