Let's understand how fast is playground.wordpress.net on a dated hardware, like a 2010 Laptop, compared to the latest Mac pro.

Let's measure:

• Web vitals
• Time to first WordPress paint
• The speed of opening the block editor in Playground

And then let's measure the same for a vanilla WordPress without Playground.

Let's use this issue as a central point for collecting these measurements over time.

cc @reimic