How can I reduce grain/noise in my lumion animations

[Benard Kiarie]

I've rendered the following videos at 3 star quality on lumion, HD. The final walkthrough animations however come out with a lot of grain, or some sort of fuzziness especially for interior shots. What can I do to tackle this? Links to the two videos are pasted below:

 

[Rodolfo Tanno]

Definitely this noise is caused by the rendering quality, few stars...Render a few seconds with 4 or 5 stars and you will notice that the problem will be solved.

[Scott Schroeder]

Yeah, the trade off is always noise for time. The less noise you want, the more time it will take the render. Some off the issues look like you are using too strong of a sharpening filter, especially on the couch shots in the 2nd animation.

[Francisco Penaloza]

I would recommend to just render at max quality and output a larger image to give better pixel size to render. For instance if your final output is HD then render 1440 or 4K then reduce the size in post to HD.  I am not a fan of any sharpening filter in any software really.