diff --git a/cista/app.py b/cista/app.py
index 7a1fffa..bdacb03 100644
--- a/cista/app.py
+++ b/cista/app.py
@@ -37,7 +37,7 @@ async def main_start(app, loop):
     tracemalloc.start()
     config.load_config()
     app.ctx.threadexec = ThreadPoolExecutor(
-        max_workers=8, thread_name_prefix="cista-ioworker"
+        max_workers=3, thread_name_prefix="cista-ioworker"
     )
     await watching.start(app, loop)