The F1 25 world car becoming slow at 1000 tech is a known bug, likely caused by a scaling issue where the game slows down high-tech cars in events. A common workaround is to dismantle your vehicle parts back to a lower tech level (around 500-600), which restores the car's performance to a competitive level, even though this is not a permanent solution.
Problem: The car is slow at 1000 tech
Cause: It appears to be a bug in the game where cars with a tech level at or near 1000 are scaled down significantly, making them slower than other cars in events like the Invitationals.
Symptoms:
The car is noticeably slower than other players and AI opponents, often several seconds behind per lap. The problem is most apparent in Invitational events. It is not a hardware or installation issue, as it has been reported across many platforms and re-installs.
Workaround: Dismantle parts
Action: Dismantle your vehicle parts back to around level 100, but keep your team parts at 1000.
Result: This restores the car's performance to a competitive level, allowing you to keep up with other players.
Limitation: This is a temporary fix, not a solution to the underlying bug, which developers need to address.