There is canon technology (cybernetics), board-approved cybernetics, and custom and canon species which have enhanced perception of time, as if they experienced time "slower" than others. Masters or skilled practitioners of force speed are generally capable of speeding up their perception of time as well, such as Darth Sidious in canon (best example I can come up with, as he killed 3 Jedi Masters in under a minute utilizing such).
Lanax Grayson said:
What about perception? Going off what Malachite the Shoki mentioned I could use tech to enhance the Echani natural sense to almost predict moves before they happen. Of course this would need flaws as this could easily become OP if there aren't any. One flaw is it is tech so it is vulnerable to EMPs.
Here's a
cybernetic implant that enables faster "processing time", which is essentially another way to go about bettering your perception of time as it occurs.
Here's a
custom species that has natural perception advantages, with a weakness thrown in (which should be a weakness in any use of such a strength if it isn't a temporary thing), that basically sees things and experiences them exactly as you are requesting. Just understand that there are absolutely no PC characters of the species, their planet was destroyed in their species history and only 50ish of their kind survived the Yuuzhan Vong War (per information obtained via their species sub.) Currently the only PC character to-date doesn't technically exist yet ( a WIP of mine), and NPCs are requested in the sub to not be made without talking to the submitter to ensure that the history of the species and such is fleshed out correctly.
Here is a
canon species with a sped up reactionary speed, which is probably more of what you want in instances of fighting, but doesn't necessarily slow down the perception of time.