My rule is if it feels like there is something wrong with the steering, there probably is. Unless you’re sure the car is tracking straight and nothing is wrong, double check it! If the steering feels like it is starting to wander, often the culprit is a loose servo horn, or loose bell crank bolt. Check these!

Adjust the sub trim setting on the radio until the car runs straight, then adjust the end points of the steering independently on each side so that the steering can just reach full travel with pushing hard against the stop. Then reduce the ‘dual rate’ setting which will give you a percentage of overall travel - I start with around 80% on carpet but adjust up or down based on grip and track layout. As mentioned above, reducing the throttle endpoint (after previously calibrating it at 100%) will reduce your top speed. Starting with a lower/middle range punch setting may also be helpful for starting out.