Noticed last night after some spirited driving the car is struggling to pull off In 1st gear, car will judder a fair bit and a little bit when releasing the clutch going into second, but 3,4,5,6 gears are all fine?

Car pulls fine otherwise, no slip at all.

Any ideas? Clutch? flywheel? Some sort of mount?

Juddering sounds like flywheel but it would do it all the time I would think If it was

That's what I first thought, seems as tho it's not gripping and slipping

Really silly question has it done it since and was and is your air con on. Cos before I hade a ac prob and my car did this and was really juddery and slow.

Nope ac isn't and hasn't been on, car is just juddery pulling off, fine after that. Car pulls just as well as it always has

might be clutch judder very first signs of clutch beginning to feel tired. without experiencing it though hard to tell

More I rev the car in 1st the more it judders, nit excessive revs tho , less revs and it pulls off fairly well