how to improve an investigative tabaxi soulknife with a speedy hit and run build in a meaningful way ideally with feats? (and without multiclassing/magic*)

relevant backstory stuff is that he as a noble who got framed in a robbery, served prison time, and after getting out opted to become a sociable but untrusting bounty hunter who prefers fights not happen if possible.

2024 material is allowed (as the game is using weapon masteries), but id prefer to avoid using it if possible.
race is tabaxi, class is rogue, subclass is soulknife, level is 6 currently
stats are 20 dex, 16 con, 14 int, 14 cha, 11 wis, 8 str.

ive already taken mobile, and i plan to take skill expert for prof and expertise in history at lvl 8.
and i wont take skilled because i dont wanna step on other players toes, especially since theres 2 other rogues who toes i already struggle to avoid stepping on.

the problem is that im generally at a dead end and dont see any way out.
i cant increase my speed while staying monoclass, since im a rogue base damage improvements mean squat, and skipping skilled while taking skill expert largely exhausts the general investigative aspect.

telekinetic might work cause that helps with my weakness of getting held in place, but thats all i got in terms of ideas.
meanwhile im looking at 2024 alert, observant, 2024 lucky, resilient wis, mage slayer, and tough. (though observant, lucky, res wis are a maybe while mage slayer and tough are real iffy).

oh, and the psychic blades are non negotiable. im not giving up a really cool part of my subclass.
*the no magic bit is cause lore reasons