(Xbox Series S) FPS not Smooth During Uphill and Downhill at Rally Chile

Product: EA SPORTS™ WRC
Platform:Xbox Series S
Summarize your bug I experienced a frame rate that was not smooth during Rally Chile, the frame rate dropped and was not smooth when going downhill and uphill.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Play at Rally Chile on Xbox Series S, maybe this problem not only at Rally Chile, please check in other stage.
What happens when the bug occurs? The frame rate will drop and not smooth during uphill and downhill.
What do you expect to see? Not frame drop anymore and smooth.

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 I experienced a frame rate that was not smooth during Rally Chile, the frame rate dropped and was not smooth when going downhill and uphill.