Short answer? Don't Change Much This is the raison d'etre of your decker. They invested a hefty chunk of points into their character to... Have them summarily ignored? Yes, spotlight issues can occur but they also have ways to put a decker in simultaneously actions with combat. If it's not combat, and you don't just want to flatten it to "give me these three rolls". However, an option I've suggested before (having trouble finding the exact question) is that you can have your non-tech players assume control of friendly software, drones, even hacker Contacts/Allies that would otherwise be extra GM overhead.
It's the sort of crux that occurs in any game that everyone can't do the same thing. In most games, a fight scene is the easiest because everyone tends to have at least a little martial talent even if it's not a specialty. But, for example, you have a mage who needs to do research. Usually that's condensed to one roll, flash forward, done. No real payoff for the mage to invest. And then they usually have to spend time forming a spell they can lose any time for a formidable effect... Provided the samurai's three direct attacks a turn don't finish the conflict anyway. But you still have to sit through the wired samurai's each and every combat roll without making it interesting for your "face" character.
Another option is Buying Hits from pg47, where it says that if you roll a number of dice >= 4xDifficulty, and your GM approves, you can automatically succeed as if by the exact number of successes. It's a good way to hedge junk rolls like having to disarm a simple keypad lock to a storage unit if the player doesn't want to embellish.