I'll take back some of what I said last night. I've been playing around again in more detail, and the pointer gravity (or speed as they call it) does vary with speed of swipe on the old one too. I hadn't noticed, because the speed on the old one is much lower by default. Measuring carefully this morning, On the old Samsung I get 48mm on the screen for a slow 70mm swipe on the pad, but the new HP was giving 84 on the screen for the same 70 on the pad. This was with the slider in the dialogue box set the same. Now that I've adjusted the new one to match the old one it helps a lot, it doesn't fix the problem with the drag releasing but it makes the frustration easier to deal with.
The computers in the library are desktops with mice, and I really miss the touchpad when I use them. I keep stroking the desk in front of the keyboard.
This is my new one:
https://www.currys.co.uk/gbuk/compu...l-core-i5-512-gb-ssd-silver-10198859-pdt.html
It's nothing like the 10 hour battery life they claim, I got 5 hours surfing last night, 4.5 before the battery save mode kicked in.