I have had chips in my Audis and what a world of difference in speed and power. Not just subtle either but drastically improving the speed and power felt when the gas was pressed.
Even if they had one for the LC I would not do it. I'm only doing exterior modding and nothing they can associate with a warranty issue.
My R8 had a stage 1 chip and it was covered under warranty (although it was sort of infamous that for certain issues under warranty, the chip would potentially hurt - I had radiator valve go and it was still covered fine regardless of the chip, which checks bc it shouldn't be impacted by the chip - but if I had a blow rod or something who knows).
My Fiat had an ECU remap done via ODB-II and a computer, improved gas mileage and used more of the turbo - it was a first level one, as you added mods like a modded turbo or larger turbo, cat delete, etc, there were further adjustments to the mapping that could be done. If uncovered during warranty work for anything, supposedly that would void the warranty - it was also something that could get stomped over if you took it to the dealer and they changed the mapping on their own. Didn't matter to me bc the warranty had already expired when I applied the remap.
There are other things that you can leave plugged into the ODB-II where it remaps the throttle response but it is mostly just a cheat - it is akin to just pressing the gas pedal harder/faster and are essentially a waste of money.
For sports cars there are a variety of ways they might detune them (with the Audi it was somewhat their conservative approach and also that the Gallardo and then Huracan used the same platform and they would detune it so as not to pull customers away from the higher end line; I've heard claim that some manufacturers like Nissan do it to not reduce insurance costs... not sure that makes sense to me) from their full potential and things like that can get them back. For something like the LC, I suspect it may already be relatively maxed out for what it is going to be able to get from its system.
LC is not a performance engine. I would not use a chip to alter it in any way. There is so much technology engineered in keeping the LC turbo 4 cylinder engine cool (cylinder angle, volume, shape, injection, precision combustion) and that is the easy part. Longevity is directly related to heat in an engine. For an engine that is tuned for longevity, I’m not changing it. I would pick a different car if I wanted more performance.