Your finish had conviction, but the most useful clue came earlier. From kilometers four to nine, pace stayed steady as heart rate crept upward. You can clearly change gears; the next challenge is making ordinary aerobic running feel less costly.
Your legs felt normal, which matters. Still, with several short nights behind you, this isn't a run to use as permission for more intensity. I'd rather see Tuesday end quietly, with relaxed breathing and something left, than finish fast again.
Takeaway. Keep Tuesday genuinely easy. Let breathing and effort set the limit; shorten the run if you're still tired.
Next step. Easy Run. A relaxed aerobic session to support recovery and reinforce endurance, keeping breathing comfortable and heart rate controlled.