Done. The changes I made:

1. **Added velocity clamping** - Max speed of 400, prevents erratic spikes
2. **Reduced wander strength** - 300→150, slower frequency oscillation (4→2.5)
3. **Reduced opponent attraction** - 200→100, more gradual approach
4. **Reduced center pull** - 50→30
5. **Softer collisions** - Restitution 1.5→0.8, knockback multiplier 1.5→0.8
6. **Capped bounce speed** - Max bounce speed 250, ensures collisions don't send beyblades flying
7. **Smoother speed maintenance** - Gradual boost toward target speed (180) instead of instant jump
8. **Lower launch speed** - 1000→500, gentler entry into battle
9. **Stronger friction** - 0.7→0.6 per second

The beyblades should now move at a consistent, smooth pace throughout the battle without sudden speed bursts.