That's right. The two matches you mentioned were very intense because all four teams both needed important points in this match.
The Ajax vs PSV match is certainly an interesting match, Ajax as the host certainly has greater motivation in this match apart from wanting to reduce the point difference with AZ, they also have greater motivation to want to end PSV's unbeaten trend in the Eredivisie. Of course, this is tough for Ajax, but if you look at Ajax's current development after recovering from adversity, they could beat PSV, especially in Ajax's last three matches in a positive trend.
Feyenoord against AZ is a crucial match too. because Feyenoord wants to reduce the difference in points with PSV and AZ wants to maintain its top four position from Ajax. It could be said that these four teams killed each other. Exciting
Their inconsistency is unhealthy and they just have to find a way to stop the wins from occuring through a narrow means. One would anticipate their forthcoming game against top contenders PSV and it'll definitely be an intense game. But since Ajax will be the host, it's expected that they're able to have a good performance rating.