A common strategy for this room is to use the blue boomerang to trigger the left-hand crystal switch, then immediately quickswap once and hookshot to the pot.
Traditionally the boomerang is thrown such that it hits the switch on the way back, but it can also be thrown to hit the crystal switch directly -- both strategies are essentially equivalent in time.
Throwing the boomerang diagonally down-left is the fastest option, but requires relatively precise positioning in order to ensure that the boomerang hits the switch.
Without the hookshot, the diagonal boomerang must be used in order to have enough time to walk through the pegs in time. Alternatively, a boomerang dash can be used, but this is not recommended, as it's tricky to execute and doesn't save time.
From the top-right corner, hookshotting to the bottom pot is a few frames faster than dashing downwards.
After lifting the pot, you can:
This strategy is slower but is provided as a possible alternative, dashing downward and throwing the boomerang from the bottom of the room. If using the hookshot, you'll want to make sure to dash downward far enough to avoid having the boomerang hit both switches on its return trip.
The boomerang dash is again not recommended, but shown for the sake of completeness.
Using a diagonal red boomerang toss is easier and slightly faster than the diagonal toss using the blue boomerang, as you can throw the boomerang immediately after coming out of the doorway. This can be done with or without the hookshot. Clean movement is necessary to ensure that the boomerang's return path causes it to hit the left-hand switch instead of missing entirely.
As with the blue boomerang, this alternative strategy is slower but provided as a possible alternative. You'll need to be consistent with your movement and boomerang toss in order to avoid accidentally hitting both switches.
Another common approach is to use a somaria block to hit the switch. For this strategy, dashing downwards before laying the block is slightly faster than walking. Laying the block lower will slightly increase the time gained from dashing.
This strategy is slightly faster, but relies on a precise somaria block placement that lets the projectile clear the wall while still hitting the switch. You need to be at horizontal coordinate 1666 or 1667 while placing the block, so you have a 2-frame window assuming you hold left out of the doorway.
For this strategy, a somaria dash can potentially be used for the block detonation, but is not recommended because you may bonk on the blue pegs if the crystal switch fails to trigger in time due to a framerule.
When routing through the top-right corner of the room, the pot can be picked up for a small magic refill at the cost of 15-20 frames.
For strategies that don't normally route to the top-right corner, the time cost is higher -- over a second.
If none of the other options are available, a bomb can be used to hit the left switch, though this is slightly slower than using a somaria block. A hammerdash can be done instead of hookshotting to the pot, but doesn't save significant time and usually requires a high number of quickswaps.
Note that the bomb must be placed far enough to the left to avoid hitting both switches with its explosion, otherwise the switch will toggle twice.
Do not attempt to dash downward for this strategy -- not only are you likely to be hit by the shooter, but dashing after a thrown bomb has landed only moves you at 1.5px/frame (same as walking speed).
If the orange pegs are up when entering the room, the red boomerang or cane of somaria can be used to trigger the switch an additional time without having to backtrack to the previous room, though this is slower than simply triggering the switch in the previous room.