How do I import animation from Adobe Animate into After Effects?

Hi

I have an animation that I made in Adobe Animate, and I would like to import it into After Effects for compositing. I am new to using After Effects.

I imported the Adobe Animate file to After Effects directly, but the issue is that when I press "space bar" to watch the animation or click on the timeline the video lags a lot and does not display the animation. Also the render time is very for every layer.

What is the best way to import my animation while avoiding lag? Is there a setting I should use or should I export the animation as a png sequence?

I have a lot of layers in the animation and the animation is 1 minute long.

Thanks for your help!