The performance issue is caused by the specific URL combination causing the request to HIT or MISS matching images available in the cache.
In this specific case, the workspace should be specified in the layer name and not the URL. It is possible other ArcGIS GeoServer configurations may show different behavior.
Correct:
GeoServer URL: http://localhost:8080/geoserver/gwc/service/wmts?REQUEST=GetCapabilities
Layer name: `video:land_shallow_topo_21600_georeferenciado`
Incorrect:
GeoServer URL: http://localhost:8080/geoserver/video/gwc/service/wmts?REQUEST=GetCapabilities
Layer name: `land_shallow_topo_21600_georeferenciado`