I was just wondering if this was normal, I have heard people saying their games work better in Linux than Windows, I had this same issue when I installed GTA in Garuda using Heroic Launcher.
Everything was fine, just the game was taking time to load.
If you remember this post The Ultimate guide to install 'Epic Games GTA 5' using Heroic Launcher in any Linux Distro, some people had mentioned that GTA worked perfectly fine in their PCs.
One thing I want to tell ya, is I am not going to start gaming now, (just for future purposes)
These days I am just trying to work out how can I completely cut off my dependence on Windows.
Now I have some idea how to make windows games run in Linux, I just have to make it perfect cause these are games which I found out from the Web that work equally at par with Windows, and may be even better.
There is one other thing which is hindering me: MS Office (Our school curriculums are completely based on MS Office)!
Is there a way to install Office 365 in Linux? 
I never really use Windows, except these instances when I want to use Office,
and now a days I don't game too.