After upgrading from Zabbix Server 6.0.4 to 6.0.5 simple graphs and dashboards graphs take a long time to load theirs content.

This problem was noticed on Zabbix Server 6.0.5 and 6.2.0rc1. On version 6.0.4 everything works great.

Steps to reproduce:

1. Navigate to a given host -> Latest Data
2. Choose one item and click on Graph

Result:

The content will take a long time to load. Depending on how much data is request, the graph doesn't even load. A 504 error is presented in this case.

Expected:

Graphs load in a short time.

Attached screen capture comparing the load time for the same host and same data on version 6.0.4 and 6.0.5.