Questions about Windows 7, but may be true for Windows 10

Question

1) when the MS returns a manual sorting in Windows Explorer?

2) When done that at one turn the mouse wheel in the conductor is shifted by exactly 1 row, and not as it is now in windows 7 (if the control panel there is "3", then scroll to the 1.5 line if "2" -That 1.25 approximately, if "1" in the conductor is normal, but in all other applications barely spinning) in windows 10, this problem is absent.

3) whether the standard photo viewer included smoothing, and supportgif animation view?

4) that it will be done with a folder winsxs, if the explorer size it correctly shows may be worth something to change in the explorer?

5) in windows 7 when opening a folder for a long time a pop-up information about the file system is mounted on SSD- therefore cause a slow HDD does not offer. in windows XP 10 and it works well.

Cost have to wait for the solution of these problems, or to put XP and "enjoy"?