Yup, that makes sense on that four generations old Maxwell laptop GPU. Be careful with the workload per launch on that.
If you’re running R510 drivers, then you can also upgrade to the OptiX 7.4.0 SDK.
There have been some API changes in the versions after 7.1.0. Have a look into the OptiX Release Notes describing these. (Link always below the respective OptiX version’s download button.)
In case the SDK still generates PTX code for the Pascal SM 6.0 target by default, change it to SM 5.0 for Maxwell:
https://forums.developer.nvidia.com/t/optix-7-1-issue-with-running-samples-on-a-maxwell-card/140118/2