I recommend looking into the Power Sequencer addon [1] that makes editing in Blender's Video Sequence Editor (VSE) a better experience. However, it's still pretty clunky so might be even better to wait for the upcoming VSE overhaul [2]

[1] https://www.blendernation.com/2020/05/17/blender-power-seque... [2] https://developer.blender.org/T78986