i am getting 70 steps per second my whole project is slow i only have 256 bytes of memory with a couple of 1 bytes here and there so what is the most effecient way to make memory/ram

(i think the simulation could have some multithreading but idk)

the good thing about this ram is that it starts empty, unlike normal d-latch-grid or grid of registers.

But if you want to make it real, RGB display is nonsense.  You can make a RAM with so many and gates and not gates. For 2^n bytes. There will be n registers, n not gates and 2n ands. If you make and gates with tri-state buffers, it will be faster. But this will be maybe more complex than version with decoders. I recommend Sebastian's RAM in his latest video.