Running multiple pipes as input for complex equations --> TB crashing

Hey all,
My users receive a lists of their possibilities regarding how much they can borrow. To show these result, I run about 4 pipes to get the input for about 6 (complex) equations… As you may guess, the TB database is having trouble keeping up with all the equations, since all the equations are run, even when some field values have not received their value yet.
I cropped the formulas up to the point that TB can’t keep up with it. Also I can’t use connection fields since these values cannot be used as input for other equations. So I have to put them all in one flow at some point in the app.

My question is: anyone has experience with this and share your solution?