Couchbase stats timeouts

What could be causing very slow Web Console (Fetching stats, node info, pretty much everything). error.log is full of errors like this:

[ns_server:error,2022-01-20T21:10:04.127+02:00,ns_1@10.11.110.143:<0.2831.0>:ns_server_stats:report_prom_stats:108]system stats reporting exception: exit:{timeout,
                                        {gen_server,call,
                                         [ns_server_stats,get_stats]}}
[{gen_server,call,2,[{file,"gen_server.erl"},{line,215}]},
 {ns_server_stats,report_system_stats,1,
                  [{file,"src/ns_server_stats.erl"},{line,124}]},
 {ns_server_stats,'-report_prom_stats/2-fun-0-',2,
                  [{file,"src/ns_server_stats.erl"},{line,106}]},
 {ns_server_stats,report_prom_stats,2,
                  [{file,"src/ns_server_stats.erl"},{line,118}]},
 {menelaus_web_prometheus,handle_get_local_metrics,2,
                          [{file,"src/menelaus_web_prometheus.erl"},
                           {line,110}]},
 {request_throttler,do_request,3,
                    [{file,"src/request_throttler.erl"},{line,58}]},
 {menelaus_util,handle_request,2,[{file,"src/menelaus_util.erl"},{line,216}]},
 {mochiweb_http,headers,6,
                [{file,"c:/Jenkins/workspace/couchbase-server-windows/couchdb/src/mochiweb/mochiweb_http.erl"},
                 {line,150}]}]

Couchbase version is 7.0.3 Enterprise on 3 Windows nodes.