How does Sony Ericsson Z770 modify the cache to speed up SMS?

This can only be improved by new software versions after Sony Ericsson, including the current K850. Information transmission is extremely slow. I think it has something to do with the CPU of the mobile phone. There are so many programs in 5 million cameras, and the CPU is the same as W9 10. It's hard to think slowly.

Similarly, the short message input of Z770 is slow, which is related to the CPU. This is also to reduce costs. Cache can't be changed, and it can only be improved by improving software.