According to SimBin there is a patch under heavy testing to solve the issues that came with their newest title RACE ON:
"Race On was our main release of the past months and our development team have been delighted with all your
positive comments and words of encouragement on that release. Makes it worth all the long hours
Our hard working team have been very busy since RACE On went public though, and in the near future we
intend to release a new patch to resolve significant issues that you have been kind enough to report to us.
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The patch will as always be backwards compatible, meaning that RACE 07, GTR Evolution and STCC owners
will also feel the benefits. The patch is currently in heavy testing."