Gdemu clone issues

Hi, I bought a gdemu clone, I'm using a 200 GB card https://www.amazon.com/dp/B073JY5T7T/ref=cm_sw_r_cp_api_i_XV99AbDJMVSYG I had to use a third party party tool to format it fat32, instead of built in Windows one. I'm using the card maker program to add games. Most of the time it won't even boot to the game select menu. Then when it does and I finally get a game booted it will either reset, freeze or the sound will go glitchy. Anyone else experienced this? I'm using VGA on a pal Dreamcast . Im using the patch VGA option when adding games. Thanks for any help!

Edit, https://www.reddit.com/r/dreamcast/comments/8j2488/200gb_sandisk_ultra_micro_sd_card_works_with_gdemu/ Someone else using the same card