The forge was many problems which need to be fixed; but I won't talk about the radiant shortage, or the minimum option which both acts as a "throw away crystals here" button and increases the prices of reasonable forges. Instead, I'll just talk about the fact that forging weapons is tedious.

Here's a step-by-step process of forging a weapon after the update:
1. Open the forge, which causes a lag spike
2. Choose the category of equipment to heat
3. Choose the item
4. Choose the med or max option(since nobody uses the min forge)
5. Press "FORGE"
6. Watch the animation of the item getting forged
7. Press "Okay" on a confirmation pop up and get on with the level.

and here's the process before the update:
0. Have the weapon automatically heated.

I know that this system of fire crystals has to exist to slow the pace, but this is a huge slow down, especially in the beginning of a level. Let's make this process a bit faster.

Instead of having to choose the item in the forge, let's use the best way of selecting items in one's arsenal: in the arsenal itself. Selecting "Forge..." would open a smaller forge window in the middle just for the item that was clicked on in the arsenal, getting rid of the other item section on the far right, which in turn reduces the lag.
In this forge window one would see the results of all the chances of each amount of crystals and clicking the amount would immediately forge the weapon, and the animation in the confirmation pop up would be smaller and shorter, like the crafting pop up animation.

So then the process would go like this:
1. Open the arsenal without lag
2. Select "Forge" on the item
3. Click on the amount of fire crystals and forge
4. Close the window

This process would make forging equipment much less tedious.