I had this problem too.
The issue for me was that my computer had two disks, a small fast one (sata ssd) and a large slow one. Windows had separated itself with the operating system itself and installed programs on the ssd, with all user documents on the slow disk.
Linux can do this too. Put a partition mounted on / (root) on the fast disk, and one mounted on /home on the large disk.
I’d put both on the large disc initially.
There’s a part of the installation where you set up the partitioning. Redoing the installation really sped up my Linux Mint installation.
I’ve heard of something called “Red Eclipse”, which seems to be under CC-BY-SA.