playback speed of a stock video

Hi,

I want to purchase a stock video on Adobe stock and I see 5 options for playback speedness:

0.2, .05, 1, 2 and 5x. I can choose a speedness on the Adobe stock site.

But how to adjust the playback speed of a stock video after downloading it? Is this only possible after purchasing a product or is there a possiblity after downloading a preview? I just have one option after downloading a preview...is that correct?

Thanks very much in advance.

best regards,

Alphons