Help needed, friends! The driveshaft vibration at high speeds is really annoying.

Hello all! I'm dealing with a frustrating problem – I'm experiencing a noticeable vibration while driving at speed, and it's clear the driveshaft is the culprit. The vibration is worse around 80-90 km/h. Based on some forum posts, it looks like an imbalance issue. Now I'm trying to decide the best way to fix this: Take the driveshaft off and get it balanced at a shop. It appears to be the most reliable way, though it's a lot of hassle – removal, transport, waiting, and reinstalling. Doing the balancing on the car itself. Some folks manage this with special equipment without removing the driveshaft. Has anyone tried balancing their driveshaft this way? Let me know how it worked for you. Thanks for your help!