# Why Thunkable X is TOO SLOW **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [December 10, 2019, 9:17pm UTC](https://community.thunkable.com/t/why-thunkable-x-is-too-slow/360757 "2019-12-10T21:17:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![peacehero](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/peacehero/32/41264_2.png) [@peacehero](https://community.thunkable.com/u/peacehero)\ **Post date:** [December 10, 2019, 9:17pm UTC](https://community.thunkable.com/t/why-thunkable-x-is-too-slow/360757/1 "2019-12-10T21:17:16Z")
Hello, I just designed the interface. Then I pass to block code. But I realized that it is too slow. I get block in, Thunkable is being stopped for twenty second. It is exactly impossible to build an app. Please help. Why thunkable x block side are too slow to build block code? ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [January 7, 2020, 12:12am UTC](https://community.thunkable.com/t/why-thunkable-x-is-too-slow/360757/2 "2020-01-07T00:12:01Z")
3 posts were merged into an existing topic: [Is there some reason why my blocks might start to lag?](https://community.thunkable.com/t/is-there-some-reason-why-my-blocks-might-start-to-lag/55876) ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [January 7, 2020, 12:12am UTC](https://community.thunkable.com/t/why-thunkable-x-is-too-slow/360757/3 "2020-01-07T00:12:01Z")