Well, Considering this Question was brought back up, I'll answer it with the correct answer.
No, Extreme Speed would not go first, because it only has a priority level of + 2
Using Items have a priority of + 6, so Items would go first,
Main Points here,
- Extreme Speed would not go before Items due to having a lower priority level
- Items have a priority level of + 6 and Extreme Speed has a priority level of + 2