@bizcocho85,
1. SBC-bench would fail to start due to reason that some of the testing software it uses is not present in this version (eg. tinymembench, or something like that and refused to work ), also it requires modification as it will not execute if the system load is above 0.1 % which earthly not possible as in being idle in headless mode it has Avg. load of minimum 2 % !, due to time constraint I actually referred to a previous test done by @numbqq
ref. here to the original post, original post
2. I have android in my eMMC, which means using Mainline kernel would give me the green screen problem, this might have been slightly fixed but for sake I have used it.