No ability to move backwards is a strange desition. Strafing also impossible.
About sluggish movement - in general what you want to achieve with movement is for it to take same time to move or turn. Otherwise it will feel sluggish even if in general turning will be also fast. In your case though - turning is very-very slow and it combines with very fast movement forward, that combination makes it feel even worse than if both of them would be slow to be honest. It just feels terrible to turn and there is no other option!
Buttons for attack and use energy were so small on my screen, that I didn't notice them at first! Its general issue of many jam games - you kind of need either to scale UI or lock resolution somehow.
Combat felt okay, energy restoration places could be more clear about them depleting though. At first I saw that they are still selectable and was under impression that I can come back and restore energy again. But nope!
All in all - a solid start and with some polish and beef could be awesome entry indeed.