diff --git a/src/wikiq/__init__.py b/src/wikiq/__init__.py
index 1e26700..e9fcc0f 100755
--- a/src/wikiq/__init__.py
+++ b/src/wikiq/__init__.py
@@ -30,7 +30,7 @@ from wikiq.wiki_diff_matcher import WikiDiffMatcher
 
 TO_ENCODE = ("title", "editor")
 PERSISTENCE_RADIUS = 7
-DIFF_TIMEOUT = 60
+DIFF_TIMEOUT = 30
 from pathlib import Path
 
 import pyarrow as pa
@@ -505,9 +505,9 @@ class WikiqParser:
                     num_context_lines=1000000,
                     max_word_level_diff_complexity=-1,
                     moved_paragraph_detection_cutoff=-1,
-                    words_cache_capacity=-1,
-                    diff_cache_capacity=-1,
-                    stats_cache_capacity=-1,
+                    words_cache_capacity=10000,
+                    diff_cache_capacity=10000,
+                    stats_cache_capacity=10000,
                 )
 
                 fast_differ = pywikidiff2.pywikidiff2(