Thanks for playing, fren!
I'm not sure if you noticed but you can change the settings to make the turnflow much faster. Also there will be an option that makes the phases fly by instantaneously (Still the turn itself isn't as quick as the games you mentioned but playing with those settings would likely make it much more bearable).
The GPU going high is because I'm a moron and I developed this while learning what the heck I was doing. As a result, a lot of things are images instead of sprites. This causes overdraw and uses a lot of GPU regardless of how strong your GPU is. (It also elevates the minimum required specs since very weak GPUs don't like dealing with this). This has me a bit scared since I don't want people thinking the game has some miner or something stupid like that, but fixing it entails a massive refactoring of the game, so I haven't tackled it and I'm not sure If I'm strong enough to do so.
At any rate, thanks again for playing and for your comment!