Multipliers not working (or at least taking too long to start working)

[wary current]

The double and quadruple multipliers that you get on watching ads or spending Darwinium, they start working a long time after getting activated.
I don't have a screenshot as of now, but my metabit generation rate is about 26 M/s and it doesn't increase for at least some 2-3 minutes after buying the double and quadruple multipliers.

[sharp cipher]

buying any generator makes the game register the boost is active