also does the more layouts drop the performance ? is it better for the performance to build a game in several layouts with every one of them will be small, or is it better to build huge layouts but less in number
Develop games in your browser. Powerful, performant & highly capable.
This is from the manual .
Number of layouts also is unlikely to have any effect other than the download size. The layout size also does not have any direct effect; larger layouts do not use more memory or require more processing, unless you use more objects.