[Map] [emerald] experiencing lag on a new map

[Lord_Ironsaber]

tried making a new map to mimic a furnished secret base.


(if I've done this properly) this is the movement permissions


currently, this map is sitting in bank 33, slot 1


current issues:
while on this map (everywhere else is fine)

*frame rates drop to 6fps or less (music is unaffected for whatever reason)
*controls are responsive ~10% of the time
*

[edit] lesser issue: the slide doesn't seem to work.
[edit] the slide works, the map is just too lagged out for it to be properly observed.

[update] emptied the whole map of any secret base decorations, the lag was lessened but the map is still to lag-infested to be viable.
pretty sure it's to do with how it got inserted into the game files.
[update] added a different map to island cave at 24,108, it works fine.

conclusion:
what have I done wrong?
does this require more information to diagnose? if yes, what?
how does one fix this and/or avoid this error?