There’s a flavor of Linux for just about everyone. For comparison, Mint 17.3 boots in about 30-45, seconds on my 8 year old Vista laptop. Vista takes a couple minutes now.
Linux can be installed on a 10gb partition. Most Linux distributions will use about 5gb of space. Windows 10 takes 13gb of space when first installed. Just to see if I could, I installed 10 different Linux distributions along with Windows 10 on my old Dell 1545 laptop. This was on a 340 gb hard disk.
It worked. At bootup a boot manager (Linux Grub) let me choose which if the 11 operating systems to boot. It was fun to play with. Don’t try this on you working PC. I had an old surplus laptop to play with.