Questions in Geometry Dash

i saw this user and i went in the level but it crashed my game should i be worried or no

where do i find the 2.2 gdps?

How do i reduce input lag and random lag spikes? its been affecting my gameplay a bunch and im becoming demotivated

Robtop has recently been going crazy with videos on the Discord, 2.2 might be closer than we think. When do you think it's gonna come out?