- Some of the delay is access time. The system is not built for speed, so loading data the first time causes a hit.
- Renderings that require fewer "pixels" to flip colors are faster, IIRC, and it becomes easier to get away with weak partial refreshes as well. (A full refresh involves blanking the screen black or white first; if you don't, it will eventually start ghosting until a full refresh is performed)
- Some of the delay is access time. The system is not built for speed, so loading data the first time causes a hit.
- Renderings that require fewer "pixels" to flip colors are faster, IIRC, and it becomes easier to get away with weak partial refreshes as well. (A full refresh involves blanking the screen black or white first; if you don't, it will eventually start ghosting until a full refresh is performed)