We agree. Hours are wasted in yeshivas reading Talmud instead of Torah.
Estimates are:
Talmud: 60-70%. Including Gemara & Mishnah, with emphasis on analysis, debate, & application of Jewish law.
Mishnah: 10-15%. Mishnah study integrated into Talmudic study, but some time set aside for it.
Midrash: 5-10%
Midrashic is usually studied less intensively compared to the Talmud.
Torah (Chumash): 10-15%
Study of the Torah can vary based but is generally less than Talmud study.