SPEEDRUNNING TIPS FROM ME:
1: throwing from what i know does a twice as much damage then normal slashing so if an enemy is far away you can throw and use tip 3 to push the enemy on the ground and repeat attack it
2:on level 2 theres a way to cheese the start jumps by going ,1 run onto the corner of the first block, 2 jumping so you dont have as much height and you land on the next platform at the back, 3 spam jump until you reach the sword
3: the lower you throw a sword at an enemy the less it will move away so you can throw the sword at an enemy where it bounces right back into you
edit
4: thowing a sword at an enemys head will usually make it fall with the sword going up instead of backward
hope a speedrunner uses these!