Another person reported a similar movement problem in the topic
Graphic game problem help please.
What is your problem trying to jump? See the D2:ED topic
jumping for some suggestions (with DKS's camera distance being closer, changing the camera angle probably isn't going to make as much of a difference).
From the left side of the front gate to Lovis' tower you should be able to jump over into the tower. Another person who had a problem jumping to a couple levers (used to open the gates) just kept exploring Broken Valley until they found 4 parchments required to get the password for a couple teleporters, one of which leads to a level at the top of Lovis' tower, allowing them to jump down to get to the throne room.
Try emailing support@larian.com, with a description of the problem and maybe a link to this topic. See the DKS
support page.