Adding LUT makes preview 75% speed

[Hudson555x]

Works fine for me.
Bug reports need a lot more information.

Requesting Support (2020)

Need help with Shotcut? Please read this whole tutorial before submitting a request/question as it will save you and the volunteers in this forum a great deal of time trying to solve the issue. Obviously if it’s bug related, the most information possible is going to help you and Shotcut’s further development. If it’s something feature or filter related, some information obviously is needed, included a screenshot and/or a copy of your MLT file, which can be uploaded on the forum. This forum i…