[Feature]: Make CL swaps only fetch uptime accumulators if there is a tick crossing

[ValarDragon]

Summary

CL does far too many unnecessary state reads and writes. There will be several issues along these lines.

One thing is that Uptime Accumulators are only needed if there is a tick crossing. We fetch them on every single swap, which is an extra 5 state reads -- a notable sync speed cost!

Lets make them only get fetched once, if there is a tick cross. (And on repeated tick crossings, not do multiple fetches).