Recording a cassette tape with bad balance issues

I have a cassette tape, which I can record, but it’s balance is way to the right side. I know I can correct this on playback, but I’m exporting it to a WAV file and see no way of repairing the problem. It is stereo tape.
Anyone know what I can do, without recording it in mono?

If you click the little drop-down arrow to the left of the waveform, you can select Split Stereo Track and then edit the left & right channels independently.

After boosting the weak side you might have too much hiss and you might find it’s better to kill that side and make a mono file, or mix both sides together to mono, etc.