Vauxhall Corsa 1.2 stuttering at idle and under acceleration.

Hi guys. Got a Corsa 1.2 SXI Petrol, from 2013 and got an issue hopefully someone can help me with. The car seems to stutter every 10 seconds or so at idle and sometimes when accelerating. It is worst in high gears. The problem only happens after the car is warm, so after about 15-20 minutes of driving; before that it drives really well. There are no warning lights or funny noises/ smoke and the car is mostly drivable. Weird thing is, I noticed this issue a little while ago and after putting some miles on it it seems to be a bit better. It only has 22000 miles on the clock.

Thanks!
Ben