Generally fish like consistency in their water parameters (sticking to the same water change schedule would be best), unless it is done properly over a slow period of time. From my understanding you did a 45% water change because the driftwood was making the water a bit dim and yellow, which leads me to believe that it was recently added. A piece of driftwood that leaks (which is fine) will most likely lower the pH which is a bit stressful for your fish as it is. When you did a large water change you most likely besides temperature change caused a pH fluctuation causing the fish to stress out.
Based on the video the fish are only gulping while they appear to be eating and active, which means they should be fine. By adding a water conditioner you helped as well.
Do not do large water changes like that out of nowhere, when dealing with aquarium time is the answer, give it time and over a couple of smaller water changes the water will clear up. If it did not I would suggest taking out the driftwood and either holding it in a large bin rinsing it for a couple of days or simply boiling it for a couple of hours.