Should i upgrade my RAM from 8GB to 16 or even 32 and use ssd instead hdd or buy a newer imac (currently have Late 2013, 27") to be able to run Sequoia comfortably

I want to upgrade my imac 14,2 to sequoia and probably even to MacOS 26 later but I don't like it being slow (not too slow to be unusable it's still better than my windows pc, but I want it to be instant-responsive, like not having to wait for 5-10 seconds before it wakes from sleep or launches an app after reboot)

Author: @9307911