2004 955i Temperature

Hi guys, I've just returned my S3 to the road after a long lay off.
Can anyone advise on what a normal running temperature is, it seems hot to me regularly in the high 90s and up to 100c while cruising at 85mph
I have flushed the system twice now with additive and coolant is a good colour.
Not sure if I'm.looking for an issue that isn't there or if I should do more work on her.
Thanks.