VR in Twinmotion

Hello, I have an Oculus Quest and I try to create attractive presentation in VR for my client. Unfortunately, after exporting to Oculus Quest the model isn´t smooth/fluent. I don´t know if a I have a bad computer or if the software isn´t ready for fluent presentation. Do you have some experience with virtual reality in Twinmotion? Or can you recommend me another program to present the project in virtually reality? Thank you.