My Clawdite Slicer/Outlaw tech started out as the electronic door opener. That was kind of a drag, so I decided to try and get creative. I got to disable droids and slice into space station systems to re-pressurize areas and the like. That was pretty cool, but still had very little excitement during the combat encounters.
That changed when I started the whole Outlaw Tech thing. Along the way my character had been collecting droid bits, explosives, and even a thermal detonator. I found one of those little mouse droids and designed a simple program (I drew this up as a flowchart during the fight to get the GM's approval. It felt rushed, like the character was doing it in the situation!), then I hooked up the droid with an arming mechanism and the thermal detonator with the intention of being a last ditch effort in a big boss fight that we were losing. It ultimately failed, but it felt like exactly what my character would do and was pretty fun!
My suggestion: think back to your last few sessions and imagine the craziest way that your character could have solved the problem, then add more explosions. Or, if they're in a ship, find as airlock to slice remotely and see about evacuating the bad guys into space. Or overload reactors, re-write history on the holonet, modify your group's ship transponder signal (make it look like an Imperial shuttle or one of the enemy bounty hunters' ships, etc), program droids to slow down your enemies, send enemies fake messages that loved ones have recently passed away, falsify plans for a super weapon to sell to the highest bidder, etc. Hsve fun!
I'm in agreement, mostly, but getting too outlandish leads to one of two things. Either you are too powerful because your skill turns into "what can I make up today..." Or all these outlandish things do basically nothing.
If you are coming up with things to do as a slicer, I would make sure to have a desired effect. When I sliced the enemy TIE weapon systems, I didn't just ask if I could do that, I specifically asked if I could do that and give them a setback die when they attack. Have concrete applications for the things you want to do.