fix: update default cache sizes

Author: minhd-vu

cmd/p2p/sensor/sensor.go

@@ -474,8 +474,8 @@ will result in less chance of missing data but can significantly increase memory
 	f.BoolVar(&inputSensorParams.ShouldBroadcastTxHashes, "broadcast-tx-hashes", false, "broadcast transaction hashes to peers")
 	f.BoolVar(&inputSensorParams.ShouldBroadcastBlocks, "broadcast-blocks", false, "broadcast full blocks to peers")
 	f.BoolVar(&inputSensorParams.ShouldBroadcastBlockHashes, "broadcast-block-hashes", false, "broadcast block hashes to peers")
-	f.IntVar(&inputSensorParams.MaxCachedTxs, "max-cached-txs", 10000, "maximum number of transactions to cache for serving to peers")
-	f.IntVar(&inputSensorParams.MaxCachedBlocks, "max-cached-blocks", 1000, "maximum number of blocks to cache for serving to peers")
+	f.IntVar(&inputSensorParams.MaxCachedTxs, "max-cached-txs", 2048, "maximum number of transactions to cache for serving to peers")
+	f.IntVar(&inputSensorParams.MaxCachedBlocks, "max-cached-blocks", 128, "maximum number of blocks to cache for serving to peers")
 	f.IntVar(&inputSensorParams.MaxKnownTxs, "max-known-txs", 8192, "maximum transaction hashes to track per peer")
 	f.IntVar(&inputSensorParams.MaxKnownBlocks, "max-known-blocks", 1024, "maximum block hashes to track per peer")
 	f.BoolVar(&inputSensorParams.ShouldRunPprof, "pprof", false, "run pprof server")