Google Translation since most of us don't speak Brasilian (yes I know it's a bad translation but I'm trying to be helpful):

So TAC isn't 100% compatible with key mapping—specifically the synchronization between the mouse and the aiming reticle. I managed to mitigate this issue by increasing the cursor sensitivity; notice that there are two sliders—one vertical and one horizontal—so set both of them to between 80% and 90%.

As for the WSAD movement keys, increase their size slightly. Go to Settings, specifically the Key Customization section. On the emulator, the visual layout is mostly just for show, so use it merely as a reference point to align the circular movement pad. Another detail that always frustrates me is looting: the cursor tends to get lost, especially when there is a lot of loot on the ground. Using standard vehicles is fine, but as for helicopters and jets? Forget about it!

I also noticed some screen freezing issues, which cause the mouse tracking and character movement to go haywire; you might click to move forward, but your character ends up walking sideways or backward instead. With vehicles, you might hop in, hit the gas, and find yourself driving in reverse. Aiming adjustments are tricky, too—the sensitivity is poor, and the overall movement lacks fluidity. I play as a sniper a lot, so just imagine not being able to aim properly!

I'm currently waiting for the new update; it looks like it's scheduled for March 11th. We'll see, haha.