TIRED’ KP MUST GROW INTO FRANCHISE ROLE

MIAMI — Michael Beasley has bounced around the NBA, but often he’s bounced right back to the Heat. Three times.

When the sliding Knicks (18-20) face the scorching Heat on Friday at American-Airlines Arena, Beasley will face his former team with some pangs of regret.

Not once in Miami did Beasley weave the sustained success he’s experiencing now in becoming the Knicks’ most reliable scorer, with Tim Hardaway Jr. out and Kristaps Porzingis in a shooting funk.

When Beasley looks back on his three Miami stints, he partly blames Heat coach Erik Spoelstra for not being a bigger fan of his.

“I feel I could’ve gotten more out of that organization,’’ Beasley told The Post on Wednesday after scoring a team-high 20 points in the 121103 loss to the Wizards. “I feel Spo’ could’ve believed in me a lot more than he did. It’s in the past. [There’s] no love lost.”

Told he went to play for Spoelstra three separate times, Beasley said, “I had no choice.”

Beasley is on a tear. After averaging 15.4 points in December, he started the new year with 18- and 20-point outbursts. His average is up to 11.7 points on 52 percent shooting.

His defense and rebounding have been respectable — save for that one brain cramp in the final seconds of the first half in Washington, when he watched John Wall chase down an offensive rebound and hit a buzzer-beater.

“Yeah, it was me,’’ Beasley said, taking blame.

Heat president Pat Riley drafted Beasley No. 2 in 2008, traded him in 2010 to create cap space for LeBron James and Chris Bosh, then signed him for the 2013-14 season to play alongside James, Dwyane Wade and Bosh. Riley brought him back a third time after the 6-foot-9 forward returned from China late in the 2014-15 season.

Beasley has long sensed his reputation as an enigma entering this season stemmed from coaches such as Spoelstra, who singled him out for the Heat’s defensive woes.

“There’s a lot of guys who didn’t play defense,’’ Beasley said. “When the game is over and it’s 4-2 at the final buzzer, then you can hold one person accountable for the defense. When teams scoring 100 points a game …’’

Beasley has no qualms with Jeff Hornacek, who coaching sources say has let Beasley play through mistakes — contrary to Spoelstra.

Beasley is also comfortable with assistant Kurt Rambis, his former Timberwolves coach who lobbied the Knicks to sign him for the veteran’s minimum, oneyear, $2.1 million contract.