Update app.py

app.py

@@ -96,8 +96,8 @@ def percentile(n):
 
 print('Reading A')
 ### Import Datasets
-
-df_a = pd.read_parquet(f"hf://datasets/TJStatsApps/mlb_data/data/aa_pitch_data_2025.parquet")
+import polars as pl
+df_a = pl.read_parquet(f"hf://datasets/TJStatsApps/mlb_data/data/aa_pitch_data_2025.parquet").to_pandas()
 
 ### Normalize Hit Locations
 #df_a['launch_speed'] = np.nan