unfortunately i cannot be the judge of that because i only have the normal skyrim but according to the recommended specs for "se" you should have enough wiggle room for a few mods or more. make sure to get this mod https://www.nexusmods.com/skyrimspecialedition/mods/266/?
its just the unoffical patch and corrects the little bugs and glitches that drive you insane but it also needs the nexus