2014 KIA FORTE KOUP Engine Problems

I HAVE THE FORTE KOUP SX TGDI TRIM. I WAS DRIVING ON FREEWAY AT 75-80 MPH. I NOTICED I WAS NOT ABLE TO GAIN ENOUGH SPEED TO PASS SLOWER TRAFFIC. ALSO NOTICED THAT ONCE SPEED SLOWED TO 65-70 MPH THE WAS NO POWER WHEN TRYING TO ACCELERATE. HOWEVER THE CAR STILL WAS ABLE TO REGAIN SPEED AND MAINTAIN ONCE DESIRED SPEED WAS REACHED. I THEN HEARD A NOISE WHEN ACCELERATING. IT SOUNDED AS IF SOMETHING WAS BINDING UP. I ASSUMED IT WAS THE TURBO. I PULLED OFF AN EXIT SHUT THE CAR OFF. I LET THE CAR SIT FOR A MINUTE AND THEN STARTED IT. THE ENGINE SEEMED TO BE LOUDER THAN NORMAL. I PUT THE CAR IN DRIVE AND COULD HEAR THE NOISE IN THE TURBO AGAIN BUT IT WAS NOT AS IF SOMETHING WAS BINDING IT WAS IT WAS LOUD AIR. I DROVE APPROX. 1 BLOCK AND NOTICED...