Combine and sort two unpivot graphs

Sorry for misunderstood, 

So when you say, "With the first table I made a graph with categories" May I ask, what is the measure you used on a graph with categories?

correct me if I am wrong, I guess you have used the following
on y-axis - items/attributes

legend - Categories

x-axis - is it average score?

And your second table a graph with average score is setup some thing like this on x and y-axis

if this is the case, then you can sort both the graphs by Averagescore, because both are technically looking at average score for each of your items/attributes. only thing is on your first graph , in addition your are looking at average score percentage for each category.

So technically both are same, the way you presenting is different, so you can confidentally sort both graphs by averagescore and also filter wont be an issue. both of your graphs will be sorted similarly even when you apply filters.

Here is an example, both graphs before applying filter 

both has same sort after applying filter 

Hope it helps, Feel free to raise your point if it is not what you are looking for. if it resolves your issue, please Mark this as a solution.