@schleten Hey there.
I can see there's a few issues that you've reported here, sorry some of these aren't working as expected!
- Horse not galloping off-road: Outside of missions, to be able to 'sprint' the new skill 'Heidrun Slam' needs to be acquired. Could you confirm if this is the case?
- Lunge while swimming: Could you me know if you are using a controller for this, or keyboard and mouse? Any troubleshooting will differ between the two.
- Climb fast: The climb speed is set to a default with no additional button presses to increase the speed. This speed may seem slower when compared to other AC titles. Apologies for any disappointment.
- Slide down ladders: Could I confirm the crouch is being held when trying to slide down ladders, and that this is having no effect?
Thank you for taking the time to post. I hope some of this information is helpful, and we're able to troubleshoot your other issues.