Hi, I'm encountering some slowness on my local Phoenix.

phoenix-1      | 2025-06-07 16:01:36,465 INFO sqlalchemy.engine.Engine BEGIN (implicit)
phoenix-1      | 2025-06-07 16:01:36,466 INFO sqlalchemy.engine.Engine SELECT traces.project_rowid, coalesce(sum(spans.llm_token_count_prompt), ?) AS prompt, coalesce(sum(spans.llm_token_count_completion), ?) AS completion, coalesce(sum(spans.llm_token_count_prompt), ?) + coalesce(sum(spans.llm_token_count_completion), ?) AS total
phoenix-1      | FROM traces JOIN spans ON traces.id = spans.trace_rowid
phoenix-1      | WHERE spans.start_time >= ? AND traces.project_rowid IN (?, ?, ?) GROUP BY traces.project_rowid
phoenix-1      | 2025-06-07 16:01:36,466 INFO sqlalchemy.engine.Engine [generated in 0.00012s] (0, 0, 0, 0, '2025-06-07 15:46:00.000000', 3, 3, 3)
phoenix-1      | 2025-06-07 16:04:25,489 DEBUG sqlalchemy.engine.Engine Col ('project_rowid', 'prompt', 'completion', 'total')
phoenix-1      | 2025-06-07 16:04:25,492 DEBUG sqlalchemy.engine.Engine Row (3, 918256, 18650, 936906)
phoenix-1      | 2025-06-07 16:04:25,493 INFO sqlalchemy.engine.Engine COMMIT

SELECT traces.project_rowid, coalesce(sum(spans.llm_token_count_prompt), ?) AS prompt, coalesce(sum(spans.llm_token_count_completion), ?) AS completion, coalesce(sum(spans.llm_token_count_prompt), ?) + coalesce(sum(spans.llm_token_count_completion), ?) AS total
FROM traces JOIN spans ON traces.id = spans.trace_rowid
WHERE spans.start_time >= ? AND traces.project_rowid IN (?, ?, ?) GROUP BY traces.project_rowid

sqlite> .eqp on
sqlite> SELECT traces.project_rowid, coalesce(sum(spans.llm_token_count_prompt), 0) AS prompt, coalesce(sum(spans.llm_token_count_completion), 0) AS completion, coalesce(sum(spans.llm_token_count_prompt), 0) + coalesce(sum(spans.llm_token_count_completion), 0) AS total FROM traces JOIN spans ON traces.id = spans.trace_rowid WHERE spans.start_time >= '2025-06-07 15:46:00.000000' AND traces.project_rowid IN (3) GROUP BY traces.project_rowid;
QUERY PLAN
|--SEARCH traces USING COVERING INDEX ix_traces_project_rowid (project_rowid=?)
`--SEARCH spans USING INDEX ix_spans_trace_rowid (trace_rowid=?)
3|918256|18650|936906

diff --git a/src/phoenix/server/api/types/Project.py b/src/phoenix/server/api/types/Project.py
index fe3876a95..bed722283 100644
--- a/src/phoenix/server/api/types/Project.py
+++ b/src/phoenix/server/api/types/Project.py
@@ -149,6 +149,7 @@ class Project(Node):
         time_range: Optional[TimeRange] = UNSET,
         filter_condition: Optional[str] = UNSET,
     ) -> float:
+        return 0
         return await info.context.data_loaders.token_counts.load(
             ("total", self.project_rowid, time_range, filter_condition),
         )
@@ -160,6 +161,7 @@ class Project(Node):
         time_range: Optional[TimeRange] = UNSET,
         filter_condition: Optional[str] = UNSET,
     ) -> float:
+        return 0
         return await info.context.data_loaders.token_counts.load(
             ("prompt", self.project_rowid, time_range, filter_condition),
         )
@@ -171,6 +173,7 @@ class Project(Node):
         time_range: Optional[TimeRange] = UNSET,
         filter_condition: Optional[str] = UNSET,
     ) -> float:
+        return 0
         return await info.context.data_loaders.token_counts.load(
             ("completion", self.project_rowid, time_range, filter_condition),
         )

sqlite> select count(*) FROM traces;
61006
sqlite> select count(*) FROM spans;
4952148

{"query":"query ProjectsPageProjectMetricsQuery(\n  $id: ID!\n  $timeRange: TimeRange!\n) {\n  project: node(id: $id) {\n    __typename\n    ... on Project {\n      traceCount(timeRange: $timeRange)\n      latencyMsP50: latencyMsQuantile(probability: 0.5, timeRange: $timeRange)\n      tokenCountTotal(timeRange: $timeRange)\n    }\n    id\n  }\n}\n","variables":{"id":"UHJvamVjdDoz","timeRange":{"start":"2025-06-08T18:38:00.000Z"}}}

{"query":"query ProjectPageQuery(\n  $id: ID!\n  $timeRange: TimeRange!\n) {\n  project: node(id: $id) {\n    __typename\n    ...ProjectPageHeader_stats\n    ...StreamToggle_data\n    id\n  }\n}\n\nfragment ProjectPageHeader_stats on Project {\n  traceCount(timeRange: $timeRange)\n  tokenCountTotal(timeRange: $timeRange)\n  tokenCountPrompt(timeRange: $timeRange)\n  tokenCountCompletion(timeRange: $timeRange)\n  latencyMsP50: latencyMsQuantile(probability: 0.5, timeRange: $timeRange)\n  latencyMsP99: latencyMsQuantile(probability: 0.99, timeRange: $timeRange)\n  spanAnnotationNames\n  documentEvaluationNames\n  id\n}\n\nfragment StreamToggle_data on Project {\n  streamingLastUpdatedAt\n  id\n}\n","variables":{"id":"UHJvamVjdDoz","timeRange":{"start":"2025-06-08T18:50:00.000Z"}}}