Biome blending mixing hot and cold biomes

Seed -2212974191971971480

1315 95 471 Random spruce forest where a desert should be
1242 86 749 Taiga Village generating in the middle of a Savannah
1095 86 936 Snowy Taiga, and frozen river generating in the middle of a Savanna and a desert
488 85 2472 Frozen Ocean Nestled in-between two deserts, and a boat that generated fully on land in the desert

Deleted chunks with MCAselector - Upgraded world and optimized chunks took care of 90% of the lag issues.

but the generation was still funky. Please see attached screenshots