There is another direction coming from skiing, too.
Starting and landing is much easier with skies than by feet.
The speedflying wing behaves differently compared to a normal paraglider.
In fact the wing is a mixture between this and a parachute.
Due to the shorter lines and higher force per area it is very stable.
There for also the control inputs react faster and more violently.
The faster speed and more intense ground contact is where the danger is coming from!
However it is still possible to learn speedflying in a very short time.
Only make small steps, start with wing handling, go over to small direct A to B runs and do not exaggerate after your first high altitude run.
There is lots of paragliding literature out there and maybe you have a friend who is already doing paragliding...