An International applicant for CS

IBDP programme in China

SAT: 1550
TOFEL: 115
IB predicted grade: 41/42 + TOK B + Furter math 6
SAT2 Physics & Math 2 : 800*2

IMMC regional & national meritorious
CUMCM finalist
FRC participant (Got into world championship in 2018)
Started a programming club
2 patents
Volunteer work for 6 years

Applied for CompSci got into pre-science
I haven’t heard anyone from China got directly admitted, and I was told that it is impossible to transfer to CS in the future.
Is it IMPOSSIBLE to transfer to CS in the future? Or there is still a small chance?

Somewhere on the cs website mentions the department will reserve rougly 100 spots for internal transfer. Not impossible, but certainly competitive. I actually know a few people who got directly admitted into cs from China. All of them with insane stats and extracurriculars.