As Bill says, it's as hard, you just go faster!
The simulator sets the resistance based on the gradient and your recorded weight, so if you can lower your recorded weight (no cheating) then the resistance will be lower, and you will go faster!
It will be easier in one sense, if you can go faster you will finish quicker!
On a steep gradient the resistance is almost entirely gravity and hence proportional to your weight. Reducing your weight from 95Kg to 90Kg is about 5% so you will go roughly 5% faster and take roughly 95% as long!
It will also make a difference to your Bkool fitness level, as this is based on Watts per Kg, assuming you can lose weight but maintain power (i.e. lose fat but not muscle).
95Kg is a lot of weight to push up Alpe d'Huez!
I've been working on my weight since I got my Bkool at the start of November and have gone down from c. 82 Kg to 74 Kg, hoping to lose around another 3-4Kg (goal is to get body fat below 17%).
Geoff