How do I punctuate a negated list?

I am trying to give this meaning “they wanted fewer bugs, fewer blue screens, and fewer viruses.”, but with fewer words.

The first attempt “They wanted fewer bugs, blue screens, and viruses.”. Does not work. To me it reads “They wanted fewer bugs, they wanted blue screens, and they wanted viruses.”

Is it possible to punctuate so that it can be done without increasing the word count?

I can do it in speech. “They wanted fewer «long pause» bugs «short pause» blue screens «short pause» and viruses.”, but can't figure out the written form.

Solution 1:

They wanted to reduce bugs, blue screens, and viruses.

They wanted to decrease the amount of bugs, blue screens, and viruses.