Taking all day to open it

[vadermask]

I clicked on the program after I downloaded and it said to expand or unpack, a zipped file I think.
But it was opening really really slow, just a few kb/s. I deleted it before it could open because it seemed fishy.
Actually, I smelled a rat.
Does anyone know it this program is safe?
I don't even know if it does what I want, which is to hook up a second monitor on my pc for crypto prices display.
Does anyone know a program/app that does this?