What to do in order to avoid noises on records from DSLR for greenscreen?
Well, the noise has little to do with the green screen, with the probable exception that you can now compare your image vs a clean background.

The only way to reduce the noise is by having more light.

Try to open the aperture to the max, you can or lowering your shutter speed, (But if you are making rapid moves this could have issues)

Making the ISO Higher will give you more noise, so, if you can not do the previous two options, you need to buy a stronger light. Fluorescent lamps are a decent option, they are not as expensive as led lights.

If the noise is on the background, you need either put more light on it or probably have a smoother background.

Do not use auto mode, learn how to set up manual mode, so the image does not change in brightness as you move.