G-Assist has some interesting features, like ability to analyze game performance and then suggest changes based on it. The problem is, it's heavy while doing so, lowering game performance and then basing it's suggestions on that lowered performance.
As reported by TechBBS user, he has set up his Indiana Jones and the Great Circle for speedruns and it runs near 200 FPS (Core i9-14900K + RTX 4090). When he tried using G-Assist to see what it says, the FPS dropped to 55-60 and report on suggested changes to settings was based on that performance, not the near 200 it actually runs.