You know what I am sick of this..As a hybrid owner, I can confirm you can certainly run into performance issues when going uphill for a long time. As soon as you deplete your battery (and if you push the car hard, you certainly do that fast). There are certain ways to avoid that - use sport mode proactively.
Also as a previous 2.2 I-dtec owner (which you probably also own now) - your diesel will usually never run out of power, keep this in mind. And before buying a hybrid, do an extensive test drive. Your concerns about performance are valid.
If you READ THE MANUAL. It says switch the vehicle to sport mode for, overtaking, highway driving, high speed driving and any sort ot "performance" requirement. It is more than adequate for the design scope of the vehicle and offers performance that far outweighs the rivals of KIA, HYUNDAI, etc.
It is not a track day weapon, or a hot hatch, it is not a performance car, or trying to be some kind of german autobahn clone.
It has been designed to function as a comfortable, economical, practical runabout vehicle, the clue is IN THE NAME, CRV
If you want a high performance vehicle, buy a CIVIC TYPE R instead, they are about the same price as the CRV. Or even better, do what I do and keep your speed demons to two wheels and get a motorcycle. You will quickly realise once you have been riding for long enough no high performance car can offer the thrills two wheels can; and Honda make something called the fireblade.
Honda have nothing to prove with this vehicle; it does what it was designed to do so stop winging like a little girl, either sell the car and get something else or be happy with what is was designed to do.