I've come to realize after flashing every ROM I can find multiple times on my v410, that the newer android builds are just too slow for this tablet no matter what. After a fresh install, they're mostly all quick, but it doesn't take much to slow them down. Ground Zero Roms are very well built even though there are no newer builds. Tesla High Voltage is very quick and stable with no WiFi issues. Tipsy is a slimmed down version and works well but I like the features of Tesla much more. Validus is awesome but there's a couple bugs I haven't figured out yet. It comes with both Trebuchet and Nova launcher preinstalled, has a really nice dark theme and very badass boot and shutdown animations, a keyboard that adapts in color and transparency based on the page loaded, and various visual options. Using Omniswitch for recents will cause a crash sometimes which I haven't figured out, but the regular navbar can be changed in height, and various buttons can be added and icons changed. I prefer to turn the navbar off and the Pie navigation on. Systemless Xposed causes settings to crash on Validus, and so does Lucky Patcher. If I can get these things figured out, this would be my preferred daily use ROM, but out of the box I think Tesla holds up in the long run compared to everything I've tried. It just needs a few updates due to the older android version, the only necessary one in my experience is the browser and webview. Although they are larger in size, Bromite browser and webview are the quickest and most stable. The difference is so large that it is impossible to go unnoticed. I can not get Bromite webview to flash through Magisk however, but the apk installs with no hiccups. Kernel Auditor comes built in as well.