Not sure that's true at all.
Lets look at last season. Last 19 games of 2022/23 - 8 wins, 3 draws, 8 losses. 1.42PPG (54 points over a season)
Two seasons before that? Last 19 games of 2020/21 - 9 wins, 2 draws, 8 losses. 1.53 PPG (58 points over a season)
Pochs last 19 games in charge? - 6 wins, 6 draws, 7 losses. 1.26 PPG (48 points over a season).
Go back even further. Redknapps last season in charge? 7 wins, 6 draws, 6 losses, 1.42PPG (54 points over a season)
Now if we beat Sheffield United, which we will do. This will be our last 19 games of 2023/24:
9 wins, 3 draws, 7 losses. 1.58 PPG (60 points over the course of a season).
This most definitely isn't our worst run of results since Ramos or in over 20 years at all. And if anything, shows us that this is usually a typical Tottenham season.
Start well. Tail off a bit. Hit some form again. Finish weak.