diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 847abcf0..559ae61d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,11 +3,8 @@ name: CI
 on: [push, pull_request]
 
 jobs:
-  build-ubuntu:
-    strategy:
-      matrix:
-        platform: [ubuntu-latest, ubuntu-16.04]
-    runs-on: ${{ matrix.platform }}
+  test-ubuntu-latest:
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
     - name: make
@@ -15,13 +12,17 @@ jobs:
     - name: test
       run: |
         sudo apt-get install tcl8.5
-        make test
+        ./runtest --clients 1 --verbose
 
-  build-macos-latest:
-    strategy:
-      matrix:
-        platform: [macos-latest, macOS-10.14]
-    runs-on: ${{ matrix.platform }}
+  test-ubuntu-old:
+    runs-on: ubuntu-16.04
+    steps:
+    - uses: actions/checkout@v1
+    - name: make
+      run: make
+
+  build-macos-latest:
+    runs-on: macos-latest
     steps:
     - uses: actions/checkout@v1
     - name: make
diff --git a/tests/unit/memefficiency.tcl b/tests/unit/memefficiency.tcl
index 468825a4..c899103f 100644
--- a/tests/unit/memefficiency.tcl
+++ b/tests/unit/memefficiency.tcl
@@ -100,7 +100,7 @@ start_server {tags {"defrag"}} {
                 assert {$frag < 1.1}
                 # due to high fragmentation, 100hz, and active-defrag-cycle-max set to 75,
                 # we expect max latency to be not much higher than 7.5ms but due to rare slowness threshold is set higher
-                assert {$max_latency <= 60}
+                assert {$max_latency <= 30}
             } else {
                 set _ ""
             }
@@ -226,7 +226,7 @@ start_server {tags {"defrag"}} {
                 assert {$frag < 1.1}
                 # due to high fragmentation, 100hz, and active-defrag-cycle-max set to 75,
                 # we expect max latency to be not much higher than 7.5ms but due to rare slowness threshold is set higher
-                assert {$max_latency <= 60}
+                assert {$max_latency <= 30}
             }
             # verify the data isn't corrupted or changed
             set newdigest [r debug digest]
@@ -317,7 +317,7 @@ start_server {tags {"defrag"}} {
                 assert {$frag < 1.1}
                 # due to high fragmentation, 100hz, and active-defrag-cycle-max set to 75,
                 # we expect max latency to be not much higher than 7.5ms but due to rare slowness threshold is set higher
-                assert {$max_latency <= 60}
+                assert {$max_latency <= 30}
             }
             # verify the data isn't corrupted or changed
             set newdigest [r debug digest]