The handle does not matter. Wood is a natural substance. I have seen Viscarias that were as light as 80 grams and as heavy as 98 grams. That is bigger than a normal weight range variation for blades. But there were periods where Butterfly made most of their Viscarias much lighter, 80-87 grams and other periods where they made them a little heavier.
However, the important question you are asking, Jewels, is: how does the weight affect things.
Most Viscarias that I have felt that weigh under 85 grams feel a lot worse than the ones I have felt that are in the 88-92 gram range. I have an idea why someone with a Viscaria under 85 grams may not be able to feel what is missing in comparison to an 92 gram blade.
So this is basic information on blades and weight:
If you have a blade that is the same make, same wood plies, same thickness, same construction--ie 2 Viscarias--the heavier one will almost always feel better. The exception, the reason for the word "almost" is if the heavier one had some sort of defect which is rare with Viscaria blades. Or, if the heavier one damaged in some way that affected play: like if there was a crack on the blade face near the handle.
So, if you took 10 Viscarias that weighed 80 grams, 10 that weighed 85 grams and 10 that weighed 90 grams, they would all feel like a Viscaria. The difference between the 80 and 85 gram blades would be a little less noticeable and less significant than the difference between the 80 and 90 gram blades. But the consistent feeling would be that the lighter blades would be duller, less responsive, less alive, less crisp. The extra mass behind the ball in the heavier blades would give you more of a feeling of control and power.
If you have done these tests on enough blades and blade kinds, you start realizing the results are pretty consistent across blade kinds. The reason: the composite plies do not change. The wood plies are theoretically the same, but they are not really. Some wood is denser. Some wood is less dense. The heavier sheets of the same wood have better and more consistent playing characteristics.
Then why would a 92 gram blade be better than a 98 gram blade? It wouldn't. But for each of us, there is a racket weight were the weight will slow down our swing and we start to get diminishing returns. For some it is at about 88 grams. For others, 92. For some, 98. So you would have to determine where the diminishing returns start to appear for you.
So, Jewels, if there is a reason for you to keep the 80 gram blade, like, if you are better served by lighter blades, then 80 grams is still fine. But if you will as comfortable--or more comfortable--with a little more weight, I would exchange it. If I used a setup with a blade that was 80 grams, I would hate how light it was. I have another friend who is a darn good player who, if he has a blade heavier than 82 grams he freaks out. Some of that is what you are used to. But some of that has to do with different body and strength.
Heavier will always have better feel if it is really the same blade type and there is nothing wrong with the heavier blade. The question then is, what would be the correct blade weight for you. And most people can hold more weight than they realize with all this emphasis on 85 grams.