Any Crossbow experts here?

[Tartar Horde]

I'm no expert on Crossbows but have shot quite a few including, Excalibers, Ten points and Horton and the armex (jaguar).
Regarding the power (lbs Draw weight) 175lb will handle any game you are likely to encounter in Europe, and indeed most of the World including Africa. Understand it is not power that kills the animal in archery/Crossbows, it is the animal bleeding out through internal Haemmorage caused by damaging the lungs, heart etc, which is why you aim for the chest cavity.
One thing you will find on all higher quality crossbows is that the trigger will be CNC machined to give a crisp release, which is the greatest aid to accuracy. Cheaper models will not have the same grade triggers and their triggers have harder pulls and this will affect accuracy, BUT there is no reason you should not get accurate enough with a Jaguer 175 as it really does only come down to practise and knowing your weapon and how it shoots. The red dot sight that comes with the Jaguar package is a bag of poo, do yourself a favour and buy a decent quality Mill Dot scope and learn how to use the "mill dot" reticule.