The first twenty minutes of this movie are just awful.

Are you referring to the romantic scenes between Ethan and Nyah, and the close-ups on Tom Cruise's armpits and jawline? By the way, I think the music during the flamenco dance was great.
- https://www.youtube.com/watch?v=mzu_c_eMAMU

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Joe Satriani - "Always With Me, Always With You"
https://y2u.be/VI57QHL6ge0

It picks up and improve where? This was just garbage from beginning to end.

I turned it off at approximately minute 35. Nothing about it grabbed my attention, and Cruise gives me the creeps.

This i a truly horribly paced film. For being a Jon Woo over the top action movie it is strange how there is almost no action in the film until about an hour or so in. The first 30 minutes introduce the characters and try to make us care about Ethan and Nyah's relationship while the next 30 minutes takes it's time setting up the plot.

However IMO after that the film is actually quite a lot of fun. Though it is easily the weakest MI film.

Look at that turtle go bro! 

The entire film is awful.

The first twenty minutes of this movie are just awful.

It picks up and improves.

I don't understand, was it the style or the storytelling you didn't like? What would you have done differently?

Just the first twenty minutes?.... I'd say pretty much every piece of film between the opening and closing credits qualifies as awful. Abysmal may be a better term.