Little update...
ASG retuned my car today I got 265hp and 410nm torque out of it and the car feels alot better driving now, only concern I have now is that idle at the lights there is a vibration throughout the car and its not uniform, say every 5 seconds it peaks then chills out then comes back again. I opened the bonnet and the engine is noticably shuddering. It never did this before the tune today. Is this normal? Can it cause damage to my engine and what is causing it? Is it a timing issue?

Big props to asg aswell they did not charge me to retune and spent a good hour n a half retuning.