Decent Kovaak’s scores, but my aim feels completely awful in Apex right afterward

I’m having a really hard time transferring my aim from Kovaak’s to Apex Legends.

My Kovaak’s scores are decent for my current rank, and today I even hit a new personal best. I immediately alt-tabbed into Apex afterward—no break, no fatigue—and suddenly I couldn’t hit anything at all.

My mouse felt extremely floaty and not smooth, almost as if my input or sensitivity was completely different. I’m using the same sensitivity and FOV in both games. Apex is also running at a stable 240 FPS, and my PC is more than powerful enough, so it doesn’t seem like a basic performance issue.

The strange thing is that on some days my aim transfers fairly well, while on other days Apex feels completely different from Kovaak’s, even when I was aiming well just seconds before.

Has anyone experienced something similar? Could this be caused by input latency, frame pacing, different mouse feel between the engines, visual processing, or something else? Are there any settings or tests I should check?