To speed up 3D model uploads in online tools, focus on reducing file size and improving internet stability—two core steps that cut transfer time significantly.
First, optimize your model: Use tools like Blender to lower polygon counts (fewer details = smaller files) or export to lighter formats (e.g., glTF instead of bulkier FBX/OBJ).
Second, use a wired connection: Wi-Fi can cause delays from signal drops, but an Ethernet cable ensures stable, faster uploads.
For beginners, try free online tools like CompressOBJ—they simplify shrinking files without advanced 3D skills.