Overall balance performance issue

[araujoarthur0]

Describe the issue
After the addition of the overall balance feature, there's been a considerable performance degradation on TTL.

To Reproduce
Steps to reproduce the behavior:

1. Open TTL and see it taking a few seconds to load up, and images as well (gif attached).
2. If you use Developer Tools and run Profiler, you'll see "ComputeAllTimeBalanceUntil" as a big villain.

Expected behavior
No performance issues :)

Environment

Version: 1.5.5
Electron: 9.1.1
Chrome: 83.0.4103.122
Node.js: 12.14.1
OS: Windows_NT ia32 10.0.17763

Screenshots

Additional context
Add any other context about the problem here.

[tupaschoal]

I thought it was async? If not maybe it should

I noticed we should also cache it or be smarter on when to request it, because if I'm not mistaken, changing months or changing from day to month view trigger it to be recalculated, but it didn't really need to

[thamara]

I thought it was async. At least I had tried going in that direction. But I might have messed something up.