Controversial content - clean eating my be holding you back 👀
If your goal is steictly performance or to have a solid training session even in a deficit, you may need to let go of control. Carbs and ultra processed foods (UPF) get a bad rap. I'm not saying to live on UPF exclusively. Context matters.
Save the "clean" eating and low cal foods for meals. Throw some simple carbs into your pre-workout nutrition plan and reap the benefits of training with some fuel in you. You don't have to go the sugary candy route. Toast with honey or jam works just as well. White bread, because it digests faster. And for training fuel, that's the point.
A better training session creates better results over time. You'll likely have a better session being fed and fueled versus fasted and drained.
Go eat, go lift, go get your goals. If you have questions, I'm all ears