#1724 try what happens with a single thread

Author: desperateCoder

app/src/main/java/it/niedermann/nextcloud/deck/util/ExecutorServiceProvider.java

@@ -15,7 +15,8 @@ public class ExecutorServiceProvider {
 
     private static final int NUMBER_OF_CORES = Runtime.getRuntime().availableProcessors();
 
-    private static final ExecutorService EXECUTOR = new ThreadPoolExecutor(NUMBER_OF_CORES >> 1, NUMBER_OF_CORES,
+//    private static final ExecutorService EXECUTOR = new ThreadPoolExecutor(NUMBER_OF_CORES >> 1, NUMBER_OF_CORES,
+    private static final ExecutorService EXECUTOR = new ThreadPoolExecutor(1, 1,
             10L, TimeUnit.MINUTES, new LinkedBlockingQueue<>()) {
         @Override
         public Future<?> submit(Runnable task) {