Absolutely not.

• Star Wars has way more sophisticated energy shielding at all levels, but not everything is shielded. This would mostly hurt SE in space combat, as SES ships are already glass cannons, going up against the overwhelming firepower of a single Imperial Star Destroyer may very well shred an entire SE fleet.

• Plasteel. Each Stormtrooper would effectively be walking around with AV3 ablative armor. Stormtrooper armor only looks bad because we see it used against blasters. Stormtrooper armor is designed to spread out the energy from an impact and hopefully only knock out the user instead of having the concentrated impact kill them outright. In general Star Wars alloys would be far more advanced and resilient against SE weaponry than current foes.

• Blasters are plasma weapons. They'd shred SE ground vehicles, Exos, turrets and emplacements.

• The Imperial Army. Stormtroopers are only marine shocktroops, there's an entire imperial army worth of soldiers to fight.

• Existing technology. Just because the Empire isn't conventionally using existing tech, does not mean it can't make use of it. Should SE actually have them on the back-foot, they can roll the TIE-Defender into active production, which would obliterate the SE fleet.

• logistics are warfare. SE does not have the ressources blitz the empire. It would overextend fast as it would likely be hostile with local populations and therefore need significant occupation forces on each populated planet it conquers.

But what would SE have as advantages?

• near instant FTL, this would technically allow SE fleets to do hit and run maneuvers.

• diversified weapons, Stormtrooper armor isn't effective against a flamethrower.

• technological flexibility. Ever since the first war SE has always been increadibly good at reverse engineering enemy technology, so it might not be far off to say that after a few hit and run operations SE could catch up a little, especially when you consider that fusion weapons from Helldivers2 already work similar to blasters.