...it also appears that you've got something other than tip burn going on, with how your leaves are fading like that. What's your feed schedule?
plain water about every 4 feeds
I think even if you flog her with nutes, it'll be weeks before she's done, and buds may not be worth it,... this really poor/low flower cluster density is common in landrace Asian Sativa's, which this isn't! So, it's either junk as mentioned, or you got a "packing error" fuck-up,... sucky, but it happens!
Does anyone else second this? A bit unsure weather to keep it going or can it. In these few days it's started to put out Some more flowers