That sounds about right. Hardly a landslide.
Losing 55% of the Asian vote is not good news for Republicans, and will become worse as Asians occupy a larger percentage of the election. The only reason Bush won is because he won a majority of the white vote and 60% of white males. As those groups begin comprising a smaller and smaller percentage of the election, Republicans will win fewer and fewer elections.
Just look at California. It's gone from being a bastion of the GOP under Reagan to being a lock for Democrats in 20 years, all because of mass immigration.