My car is a Kia Quoris (K900). It drives fine and smooth for 15 or 20 minutes, but then suddenly becomes slow and sluggish. The car becomes slow even in Sport mode, and 0 to 100 is done in 15 seconds instead of the usual 7 seconds. Worst of all, when I reverse for parking or move the gear selector to D, the gear shift isn’t smooth and makes a strange sound. I have the impression that the Auto Hold or the Electronic Parking isn’t properly disengaging and is holding the car from accelerating normally. All this happens without the dashboard showing any particular warning light. What could be the issue here? I checked online and there isn’t much information about this Kia model.