oh

ok so basically
in every floor there are machines
it starts from 3 and gets higher after a few floors
to get to the next floor you need to extract machines
and there are two stats for machines
skill check and extraction speed
extraction speed is how fast you extract the machines
skill check depends on 3 skill check stats
skill check value chance and size
SC (skill check) value is how much it adds to the machine
the more value the more quicker you can finish the machine
SC chance is how frequent the skill check window will appear
SC size is how big the window for hitting skill checks will be
hopefully I explained it good

ye
do u know what extraction speed is
(or just machines in general)