Importing an OBJ file into a 3D modeling software can vary in time depending on several factors. The size and complexity of the file, the performance of your computer, and the efficiency of the software all play a role in determining how long it should take to import an OBJ file.

Generally, importing a small and simple OBJ file should take a matter of seconds. However, larger and more complex OBJ files with high-resolution textures and intricate geometry can take a few minutes to import. The performance of your computer, including the processing power and available RAM, will also impact the import time. Upgrading your hardware, such as a faster CPU and more RAM, can help speed up the process.

Additionally, the efficiency of the 3D modeling software you are using can affect import times. Some software may be more optimized for handling OBJ files, leading to faster import speeds compared to others. It's essential to stay updated with the latest software versions, as developers often improve import performance in updates.

Optimizing the OBJ file itself can also help reduce import times. Simplifying the geometry, reducing the size of textures, and removing unnecessary data can streamline the import process. There are several tools available that can help optimize OBJ files before importing them into your 3D modeling software, ultimately reducing the import time.

In conclusion, the time it takes to import an OBJ file can vary depending on the file's size and complexity, the performance of your computer, the efficiency of the software, and the optimization of the file itself. While small and simple OBJ files should import quickly, larger and more complex files may take longer. By upgrading your hardware, using efficient 3D modeling software, and optimizing your OBJ files, you can help reduce import times and improve your workflow.