Losing Elite Edges due to not being in the green and forcing to unequip is a major issue. I have maxed out the entire skating skill tree and to just keep Blue I have to stay in the green. I agree, I have no reliable way if increasing speed and acceleration. Beating icing for however little XP that may give as way to unreliable and would require exploiting with sliders to even achieve any meaningful progress. I also have every perk checked that increases speed. No perk increases acceleration.
Please lock in X-Factors that you have already unlocked and equipped. That would be the easiest fix. Even better as OP said, give us the ability to unlock more in the trait tree or to increase on-ice better.