575 F1 lacking power until warmed up
Hi all, I have a 2005 575 F1. It's been great for the year and a half I've had it, but in the last month, from a cold start, the transmission has been very jerky and lacking in power. I'm assuming it's the transmission as it feels like there is a lot of slippage. It's back to normal after about 10min of slow driving, and fine again after the car has been parked for a couple of hours. I sent it to my regular shop and the suggested changing the F1 fluid, which was due anyway. The workshop now says that even after the fluid change, it's still jerky with no power from a cold start. They are checking the solenoids and other items, but they don't really know the problem. Has anyone else experienced this?
Thank you for any advice or insight in advance.