You need to get up earlier thenI do it like @JoesMum . Soak my little ones when they awake in the morning. At that time they sit still and enjoy the warmth.
But when I soak them when they are already active, they react very excited and want to get out of the bath.
I think my torts hate beeing soaked, but because they need it, they must bear it.
Or set your lamps to come on a little later. 
It's good that their active during soaks, it helps with the bowel movementsI do it like @JoesMum . Soak my little ones when they awake in the morning. At that time they sit still and enjoy the warmth.
But when I soak them when they are already active, they react very excited and want to get out of the bath.
I think my torts hate beeing soaked, but because they need it, they must bear it.
I have found the same thing. Mine seem to adopt a "basking" relaxed mode at about 95f. They don't do that as much below 90f. After about 10-15 minutes, they get quite active, though. I don't see it as hating the bath. I see it as great active movement as they are trying to explore more area than they are given access to. I love the exercise for them, and like to have them very active like that for at least 15 minutes more. I use the black mixing tubs from Lowes / Home Depot with the sloped ends. They can't get good traction as they slip on the ends -so it becomes their "treadmill".
