Describe your suggestion

There is a configuration option in config/mekanism/general.toml that allows you to reduce the effectiveness of the upgrades.
The default value is set to 10, but I find that setting it to 3 works better.
Otherwise, the factory blocks become overly powerful in terms of processing speed.

# Default: 10
# Range: > 1
maxUpgradeMultiplier = 3

Why would you like this added/changed?

When combined with an AE2 network, a single factory block is sufficient to handle all incoming crafting requests.
There’s little incentive to upgrade or add more blocks because 32 speed upgrades make the factory process everything instantly.

Totally agreed, Mekanism is way too fast especially compared to MI (which is super slow)

I do kind of agree with reducing the effectiveness a little because, 32 speed upgrades is useless right now as it's multiplier goes beyond what the gameloop can even handle. It's multiplied would technically make it process faster that it can extract (even with tick extract for 9 stacks). Granted it does scale a lot with power. What should happen is the multiplier in speed decreases while the multiplier in power usage increases to scale properly with power generation in the mod. Maybe reducing the max energy cards so that x amount of speed upgrades uses considerably more power? (thought it would be nice to reduce that power usage multiplier with electrolysis cause that already uses a LOT).

Sadly tweaking maxUpgradeMultiplier also affects chemical upgrades, and I would like to keep them as they are.