Is this player a finesse pitcher or a power pitcher?

Debuted about 20 years ago
Played for about 15 years before retiring
Primarily active as a reliever and closer
Max velocity was in the high 140s (km/h)
In his youth, it was around the mid-140s
Usually in the low-to-mid 140s
Fastball velocity was in the high 130s at the time of retirement
However, he had a definitive finishing pitch (breaking ball)
Multiple title holder and national team experience O
Played in over 500 games
And ate up quite a few innings
But with a career K/9 of over 9
His strikeout rate was higher than most hard-throwing pitchers
Who were called power pitchers
The highest evaluation of his fastball was
"It's more effective than the velocity suggests due to high spin rate"
Considering this was before the velocity revolution
His speed wasn't incredibly slow
But even looking at the league atmosphere at the time
There were almost no views seeing him as a power pitcher
To avoid bias, I did not write his specific finishing pitch or
exact debut-retirement years
1. With that kind of velocity, what do you mean power pitcher?
Forget strikeouts and all that
He's definitely a finesse pitcher
2. What kind of power pitcher is just fast but can't get strikeouts?
With a strikeout rate like that, he deserves to be called a power pitcher