Too many entity make playcanvas really slow. I run same benchmark Defold(html5), Construct 2 and Construct 3.
Playcanvas(2d Sprite) 5000 at 30fps
Defold(html5) 7500 at 30fps
Defold(Native) 27000 at 30fps
Construct 2 17000 at 30fps
Construct 3 26000 at 30fps (I can only run it debug mode!)
Pixi.js 50000 at 30fps
Unity(Native) 20000 at 30fps (I think unity