I can help.
War Thunder is not optimized for joysticks in the 2 main modes, Arcade and Realistic. Neither is it made for pad users, despite recent porting to the PS4 (who are ungodly heathens who we kill on site for their crime of existing).
Plug your mouse and keyboard in and have a whack, you might find yourself having much more fun. And all you need to tweak is the mouse sensitivity until you're killing like a pro.
Save the Joystick for when you have the hang of flight mechanics and how best to murder using a plane, then you can use it for Realistic Battles and Simulator Battles (Sim also requires you to know the advanced controls for engine, flaps etc). By then you might have found a decent forum that can help you with the setup, or even another player in game.
Good luck.