Is it your belief that human perception could function without time and space?
If a human nervous system perceiving time and space was altered, by the motion of a scalpel or projectile through space, would the perception not be affected or even terminated?
If the arrow of time did not exist except in human perception, would neurons even be able to metabolize sugars, releasing energy to enable the reactions of transmitters across synapses? What would it mean for a potential to travel along the neural membrane, and for the synaptic gap to clear after the synapse fired? How would the signals that are perceived be processed?
Is the ongoing fusion reaction in the sun, which is the source of energy for practically all life on earth, a human perception? Would plants do photosynthesis if no humans were there to witness it?
I'm not here to invalidate your beliefs, but very curious how such a radically idealist world-view addresses questions like the ones I asked.